1// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2/* 3 * Copyright (C) 2012-2014, 2018-2024 Intel Corporation 4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 5 * Copyright (C) 2016-2017 Intel Deutschland GmbH 6 */ 7#include <linux/kernel.h> 8#include <linux/slab.h> 9#include <linux/skbuff.h> 10#include <linux/netdevice.h> 11#include <linux/etherdevice.h> 12#include <linux/ip.h> 13#include <linux/if_arp.h> 14#include <linux/time.h> 15#include <net/mac80211.h> 16#include <net/ieee80211_radiotap.h> 17#include <net/tcp.h> 18 19#include "iwl-drv.h" 20#include "iwl-op-mode.h" 21#include "iwl-io.h" 22#include "mvm.h" 23#include "sta.h" 24#include "time-event.h" 25#include "iwl-eeprom-parse.h" 26#include "iwl-phy-db.h" 27#include "testmode.h" 28#include "fw/error-dump.h" 29#include "iwl-prph.h" 30#include "iwl-nvm-parse.h" 31#include "time-sync.h" 32 33static const struct ieee80211_iface_limit iwl_mvm_limits[] = { 34 { 35 .max = 1, 36 .types = BIT(NL80211_IFTYPE_STATION), 37 }, 38 { 39 .max = 1, 40 .types = BIT(NL80211_IFTYPE_AP) | 41 BIT(NL80211_IFTYPE_P2P_CLIENT) | 42 BIT(NL80211_IFTYPE_P2P_GO), 43 }, 44 { 45 .max = 1, 46 .types = BIT(NL80211_IFTYPE_P2P_DEVICE), 47 }, 48}; 49 50static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { 51 { 52 .num_different_channels = 2, 53 .max_interfaces = 3, 54 .limits = iwl_mvm_limits, 55 .n_limits = ARRAY_SIZE(iwl_mvm_limits), 56 }, 57}; 58 59static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = { 60 .max_peers = IWL_MVM_TOF_MAX_APS, 61 .report_ap_tsf = 1, 62 .randomize_mac_addr = 1, 63 64 .ftm = { 65 .supported = 1, 66 .asap = 1, 67 .non_asap = 1, 68 .request_lci = 1, 69 .request_civicloc = 1, 70 .trigger_based = 1, 71 .non_trigger_based = 1, 72 .max_bursts_exponent = -1, /* all supported */ 73 .max_ftms_per_burst = 0, /* no limits */ 74 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 75 BIT(NL80211_CHAN_WIDTH_20) | 76 BIT(NL80211_CHAN_WIDTH_40) | 77 BIT(NL80211_CHAN_WIDTH_80) | 78 BIT(NL80211_CHAN_WIDTH_160), 79 .preambles = BIT(NL80211_PREAMBLE_LEGACY) | 80 BIT(NL80211_PREAMBLE_HT) | 81 BIT(NL80211_PREAMBLE_VHT) | 82 BIT(NL80211_PREAMBLE_HE), 83 }, 84}; 85 86static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 87 enum set_key_cmd cmd, 88 struct ieee80211_vif *vif, 89 struct ieee80211_sta *sta, 90 struct ieee80211_key_conf *key); 91 92static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) 93{ 94 int i; 95 96 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); 97 for (i = 0; i < NUM_PHY_CTX; i++) { 98 mvm->phy_ctxts[i].id = i; 99 mvm->phy_ctxts[i].ref = 0; 100 } 101} 102 103struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, 104 const char *alpha2, 105 enum iwl_mcc_source src_id, 106 bool *changed) 107{ 108 struct ieee80211_regdomain *regd = NULL; 109 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 110 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 111 struct iwl_mcc_update_resp_v8 *resp; 112 u8 resp_ver; 113 114 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); 115 116 lockdep_assert_held(&mvm->mutex); 117 118 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); 119 if (IS_ERR_OR_NULL(resp)) { 120 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", 121 PTR_ERR_OR_ZERO(resp)); 122 resp = NULL; 123 goto out; 124 } 125 126 if (changed) { 127 u32 status = le32_to_cpu(resp->status); 128 129 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE || 130 status == MCC_RESP_ILLEGAL); 131 } 132 resp_ver = iwl_fw_lookup_notif_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP, 133 MCC_UPDATE_CMD, 0); 134 IWL_DEBUG_LAR(mvm, "MCC update response version: %d\n", resp_ver); 135 136 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, 137 __le32_to_cpu(resp->n_channels), 138 resp->channels, 139 __le16_to_cpu(resp->mcc), 140 __le16_to_cpu(resp->geo_info), 141 le32_to_cpu(resp->cap), resp_ver, 142 mvm->fwrt.uats_enabled); 143 /* Store the return source id */ 144 src_id = resp->source_id; 145 if (IS_ERR_OR_NULL(regd)) { 146 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", 147 PTR_ERR_OR_ZERO(regd)); 148 goto out; 149 } 150 151 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", 152 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); 153 mvm->lar_regdom_set = true; 154 mvm->mcc_src = src_id; 155 156 /* Some kind of regulatory mess means we need to currently disallow 157 * puncturing in the US and Canada. Do that here, at least until we 158 * figure out the new chanctx APIs for puncturing. 159 */ 160 if (resp->mcc == cpu_to_le16(IWL_MCC_US) || 161 resp->mcc == cpu_to_le16(IWL_MCC_CANADA)) 162 ieee80211_hw_set(mvm->hw, DISALLOW_PUNCTURING); 163 else 164 __clear_bit(IEEE80211_HW_DISALLOW_PUNCTURING, mvm->hw->flags); 165 166 iwl_mei_set_country_code(__le16_to_cpu(resp->mcc)); 167 168out: 169 kfree(resp); 170 return regd; 171} 172 173void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) 174{ 175 bool changed; 176 struct ieee80211_regdomain *regd; 177 178 if (!iwl_mvm_is_lar_supported(mvm)) 179 return; 180 181 regd = iwl_mvm_get_current_regdomain(mvm, &changed); 182 if (!IS_ERR_OR_NULL(regd)) { 183 /* only update the regulatory core if changed */ 184 if (changed) 185 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); 186 187 kfree(regd); 188 } 189} 190 191struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, 192 bool *changed) 193{ 194 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", 195 iwl_mvm_is_wifi_mcc_supported(mvm) ? 196 MCC_SOURCE_GET_CURRENT : 197 MCC_SOURCE_OLD_FW, changed); 198} 199 200int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm, bool force_regd_sync) 201{ 202 enum iwl_mcc_source used_src; 203 struct ieee80211_regdomain *regd; 204 int ret; 205 bool changed; 206 const struct ieee80211_regdomain *r = 207 wiphy_dereference(mvm->hw->wiphy, mvm->hw->wiphy->regd); 208 209 if (!r) 210 return -ENOENT; 211 212 /* save the last source in case we overwrite it below */ 213 used_src = mvm->mcc_src; 214 if (iwl_mvm_is_wifi_mcc_supported(mvm)) { 215 /* Notify the firmware we support wifi location updates */ 216 regd = iwl_mvm_get_current_regdomain(mvm, NULL); 217 if (!IS_ERR_OR_NULL(regd)) 218 kfree(regd); 219 } 220 221 /* Now set our last stored MCC and source */ 222 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, 223 &changed); 224 if (IS_ERR_OR_NULL(regd)) 225 return -EIO; 226 227 /* update cfg80211 if the regdomain was changed or the caller explicitly 228 * asked to update regdomain 229 */ 230 if (changed || force_regd_sync) 231 ret = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd); 232 else 233 ret = 0; 234 235 kfree(regd); 236 return ret; 237} 238 239/* Each capability added here should also be add to tm_if_types_ext_capa_sta */ 240static const u8 he_if_types_ext_capa_sta[] = { 241 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 242 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT, 243 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 244 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 245 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 246}; 247 248static const u8 tm_if_types_ext_capa_sta[] = { 249 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 250 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT | 251 WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT, 252 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 253 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 254 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 255 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT, 256}; 257 258/* Additional interface types for which extended capabilities are 259 * specified separately 260 */ 261 262#define IWL_MVM_EMLSR_CAPA (IEEE80211_EML_CAP_EMLSR_SUPP | \ 263 IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_32US << \ 264 __bf_shf(IEEE80211_EML_CAP_EMLSR_PADDING_DELAY) | \ 265 IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_64US << \ 266 __bf_shf(IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY)) 267#define IWL_MVM_MLD_CAPA_OPS FIELD_PREP_CONST( \ 268 IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP, \ 269 IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP_SAME) 270 271static const struct wiphy_iftype_ext_capab add_iftypes_ext_capa[] = { 272 { 273 .iftype = NL80211_IFTYPE_STATION, 274 .extended_capabilities = he_if_types_ext_capa_sta, 275 .extended_capabilities_mask = he_if_types_ext_capa_sta, 276 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), 277 /* relevant only if EHT is supported */ 278 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 279 .mld_capa_and_ops = IWL_MVM_MLD_CAPA_OPS, 280 }, 281 { 282 .iftype = NL80211_IFTYPE_STATION, 283 .extended_capabilities = tm_if_types_ext_capa_sta, 284 .extended_capabilities_mask = tm_if_types_ext_capa_sta, 285 .extended_capabilities_len = sizeof(tm_if_types_ext_capa_sta), 286 /* relevant only if EHT is supported */ 287 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 288 .mld_capa_and_ops = IWL_MVM_MLD_CAPA_OPS, 289 }, 290}; 291 292int iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant) 293{ 294 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 295 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm); 296 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm); 297 return 0; 298} 299 300int iwl_mvm_op_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant) 301{ 302 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 303 304 /* This has been tested on those devices only */ 305 if (mvm->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_9000 && 306 mvm->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_22000) 307 return -EOPNOTSUPP; 308 309 if (!mvm->nvm_data) 310 return -EBUSY; 311 312 /* mac80211 ensures the device is not started, 313 * so the firmware cannot be running 314 */ 315 316 mvm->set_tx_ant = tx_ant; 317 mvm->set_rx_ant = rx_ant; 318 319 iwl_reinit_cab(mvm->trans, mvm->nvm_data, tx_ant, rx_ant, mvm->fw); 320 321 return 0; 322} 323 324int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 325{ 326 struct ieee80211_hw *hw = mvm->hw; 327 int num_mac, ret, i; 328 static const u32 mvm_ciphers[] = { 329 WLAN_CIPHER_SUITE_WEP40, 330 WLAN_CIPHER_SUITE_WEP104, 331 WLAN_CIPHER_SUITE_TKIP, 332 WLAN_CIPHER_SUITE_CCMP, 333 }; 334#ifdef CONFIG_PM_SLEEP 335 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 336 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 337#endif 338 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 339 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 340 341 /* Tell mac80211 our characteristics */ 342 ieee80211_hw_set(hw, SIGNAL_DBM); 343 ieee80211_hw_set(hw, SPECTRUM_MGMT); 344 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 345 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 346 ieee80211_hw_set(hw, SUPPORTS_PS); 347 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 348 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 349 ieee80211_hw_set(hw, CONNECTION_MONITOR); 350 ieee80211_hw_set(hw, CHANCTX_STA_CSA); 351 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 352 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 353 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 354 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 355 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 356 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); 357 ieee80211_hw_set(hw, STA_MMPDU_TXQ); 358 359 /* Set this early since we need to have it for the check below */ 360 if (mvm->mld_api_is_used && mvm->nvm_data->sku_cap_11be_enable && 361 !iwlwifi_mod_params.disable_11ax && 362 !iwlwifi_mod_params.disable_11be) 363 hw->wiphy->flags |= WIPHY_FLAG_DISABLE_WEXT; 364 365 /* With MLD FW API, it tracks timing by itself, 366 * no need for any timing from the host 367 */ 368 if (!mvm->mld_api_is_used) 369 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 370 371 /* We should probably have this, but mac80211 372 * currently doesn't support it for MLO. 373 */ 374 if (!(hw->wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO)) 375 ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP); 376 377 /* 378 * On older devices, enabling TX A-MSDU occasionally leads to 379 * something getting messed up, the command read from the FIFO 380 * gets out of sync and isn't a TX command, so that we have an 381 * assert EDC. 382 * 383 * It's not clear where the bug is, but since we didn't used to 384 * support A-MSDU until moving the mac80211 iTXQs, just leave it 385 * for older devices. We also don't see this issue on any newer 386 * devices. 387 */ 388 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 389 ieee80211_hw_set(hw, TX_AMSDU); 390 ieee80211_hw_set(hw, TX_FRAG_LIST); 391 392 if (iwl_mvm_has_tlc_offload(mvm)) { 393 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 394 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 395 } 396 397 /* We want to use the mac80211's reorder buffer for 9000 */ 398 if (iwl_mvm_has_new_rx_api(mvm) && 399 mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_9000) 400 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 401 402 if (fw_has_capa(&mvm->fw->ucode_capa, 403 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 404 ieee80211_hw_set(hw, AP_LINK_PS); 405 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 406 /* 407 * we absolutely need this for the new TX API since that comes 408 * with many more queues than the current code can deal with 409 * for station powersave 410 */ 411 return -EINVAL; 412 } 413 414 if (mvm->trans->num_rx_queues > 1) 415 ieee80211_hw_set(hw, USES_RSS); 416 417 if (mvm->trans->max_skb_frags) 418 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 419 420 hw->queues = IEEE80211_NUM_ACS; 421 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 422 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 423 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 424 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 425 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 426 427 hw->radiotap_timestamp.units_pos = 428 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 429 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 430 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 431 hw->radiotap_timestamp.accuracy = 22; 432 433 if (!iwl_mvm_has_tlc_offload(mvm)) 434 hw->rate_control_algorithm = RS_NAME; 435 436 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 437 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 438 hw->max_tx_fragments = mvm->trans->max_skb_frags; 439 440 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 441 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 442 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 443 hw->wiphy->cipher_suites = mvm->ciphers; 444 445 if (iwl_mvm_has_new_rx_api(mvm)) { 446 mvm->ciphers[hw->wiphy->n_cipher_suites] = 447 WLAN_CIPHER_SUITE_GCMP; 448 hw->wiphy->n_cipher_suites++; 449 mvm->ciphers[hw->wiphy->n_cipher_suites] = 450 WLAN_CIPHER_SUITE_GCMP_256; 451 hw->wiphy->n_cipher_suites++; 452 } 453 454 if (iwlwifi_mod_params.swcrypto) 455 IWL_ERR(mvm, 456 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n"); 457 if (!iwlwifi_mod_params.bt_coex_active) 458 IWL_ERR(mvm, 459 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n"); 460 461 ieee80211_hw_set(hw, MFP_CAPABLE); 462 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; 463 hw->wiphy->n_cipher_suites++; 464 if (iwl_mvm_has_new_rx_api(mvm)) { 465 mvm->ciphers[hw->wiphy->n_cipher_suites] = 466 WLAN_CIPHER_SUITE_BIP_GMAC_128; 467 hw->wiphy->n_cipher_suites++; 468 mvm->ciphers[hw->wiphy->n_cipher_suites] = 469 WLAN_CIPHER_SUITE_BIP_GMAC_256; 470 hw->wiphy->n_cipher_suites++; 471 } 472 473 wiphy_ext_feature_set(hw->wiphy, 474 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY); 475 wiphy_ext_feature_set(hw->wiphy, 476 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT); 477 478 if (fw_has_capa(&mvm->fw->ucode_capa, 479 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 480 wiphy_ext_feature_set(hw->wiphy, 481 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 482 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 483 } 484 485 if (sec_key_ver && 486 fw_has_capa(&mvm->fw->ucode_capa, 487 IWL_UCODE_TLV_CAPA_BIGTK_TX_SUPPORT)) 488 wiphy_ext_feature_set(hw->wiphy, 489 NL80211_EXT_FEATURE_BEACON_PROTECTION); 490 else if (fw_has_capa(&mvm->fw->ucode_capa, 491 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT)) 492 wiphy_ext_feature_set(hw->wiphy, 493 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT); 494 495 if (fw_has_capa(&mvm->fw->ucode_capa, 496 IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM)) 497 hw->wiphy->hw_timestamp_max_peers = 1; 498 499 if (fw_has_capa(&mvm->fw->ucode_capa, 500 IWL_UCODE_TLV_CAPA_SPP_AMSDU_SUPPORT)) 501 wiphy_ext_feature_set(hw->wiphy, 502 NL80211_EXT_FEATURE_SPP_AMSDU_SUPPORT); 503 504 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 505 hw->wiphy->features |= 506 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 507 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 508 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 509 510 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 511 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 512 hw->chanctx_data_size = sizeof(u16); 513 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 514 515 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 516 BIT(NL80211_IFTYPE_P2P_CLIENT) | 517 BIT(NL80211_IFTYPE_AP) | 518 BIT(NL80211_IFTYPE_P2P_GO) | 519 BIT(NL80211_IFTYPE_P2P_DEVICE) | 520 BIT(NL80211_IFTYPE_ADHOC); 521 522 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 523 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 524 525 /* The new Tx API does not allow to pass the key or keyid of a MPDU to 526 * the hw, preventing us to control which key(id) to use per MPDU. 527 * Till that's fixed we can't use Extended Key ID for the newer cards. 528 */ 529 if (!iwl_mvm_has_new_tx_api(mvm)) 530 wiphy_ext_feature_set(hw->wiphy, 531 NL80211_EXT_FEATURE_EXT_KEY_ID); 532 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 533 534 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 535 if (iwl_mvm_is_lar_supported(mvm)) 536 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 537 else 538 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 539 REGULATORY_DISABLE_BEACON_HINTS; 540 541 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) 542 wiphy_ext_feature_set(hw->wiphy, 543 NL80211_EXT_FEATURE_DFS_CONCURRENT); 544 545 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 546 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 547 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ; 548 549 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 550 hw->wiphy->n_iface_combinations = 551 ARRAY_SIZE(iwl_mvm_iface_combinations); 552 553 hw->wiphy->max_remain_on_channel_duration = 10000; 554 hw->max_listen_interval = IWL_MVM_CONN_LISTEN_INTERVAL; 555 556 /* Extract MAC address */ 557 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 558 hw->wiphy->addresses = mvm->addresses; 559 hw->wiphy->n_addresses = 1; 560 561 /* Extract additional MAC addresses if available */ 562 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 563 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 564 565 for (i = 1; i < num_mac; i++) { 566 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 567 ETH_ALEN); 568 mvm->addresses[i].addr[5]++; 569 hw->wiphy->n_addresses++; 570 } 571 572 iwl_mvm_reset_phy_ctxts(mvm); 573 574 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 575 576 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 577 578 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 579 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 580 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 581 582 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 583 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 584 else 585 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 586 587 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 588 hw->wiphy->bands[NL80211_BAND_2GHZ] = 589 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 590 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 591 hw->wiphy->bands[NL80211_BAND_5GHZ] = 592 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 593 594 if (fw_has_capa(&mvm->fw->ucode_capa, 595 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 596 fw_has_api(&mvm->fw->ucode_capa, 597 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 598 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 599 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 600 } 601 if (fw_has_capa(&mvm->fw->ucode_capa, 602 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) && 603 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels) 604 hw->wiphy->bands[NL80211_BAND_6GHZ] = 605 &mvm->nvm_data->bands[NL80211_BAND_6GHZ]; 606 607 hw->wiphy->hw_version = mvm->trans->hw_id; 608 609 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 610 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 611 else 612 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 613 614 hw->wiphy->max_sched_scan_reqs = 1; 615 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 616 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 617 /* we create the 802.11 header and zero length SSID IE. */ 618 hw->wiphy->max_sched_scan_ie_len = 619 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 620 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 621 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 622 623 /* 624 * the firmware uses u8 for num of iterations, but 0xff is saved for 625 * infinite loop, so the maximum number of iterations is actually 254. 626 */ 627 hw->wiphy->max_sched_scan_plan_iterations = 254; 628 629 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 630 NL80211_FEATURE_LOW_PRIORITY_SCAN | 631 NL80211_FEATURE_P2P_GO_OPPPS | 632 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 633 NL80211_FEATURE_DYNAMIC_SMPS | 634 NL80211_FEATURE_STATIC_SMPS | 635 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 636 637 if (fw_has_capa(&mvm->fw->ucode_capa, 638 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 639 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 640 if (fw_has_capa(&mvm->fw->ucode_capa, 641 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 642 hw->wiphy->features |= NL80211_FEATURE_QUIET; 643 644 if (fw_has_capa(&mvm->fw->ucode_capa, 645 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 646 hw->wiphy->features |= 647 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 648 649 if (fw_has_capa(&mvm->fw->ucode_capa, 650 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 651 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 652 653 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL, 654 IWL_FW_CMD_VER_UNKNOWN) == 3) 655 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK; 656 657 if (fw_has_api(&mvm->fw->ucode_capa, 658 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 659 wiphy_ext_feature_set(hw->wiphy, 660 NL80211_EXT_FEATURE_SCAN_START_TIME); 661 wiphy_ext_feature_set(hw->wiphy, 662 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 663 } 664 665 if (iwl_mvm_is_oce_supported(mvm)) { 666 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0); 667 668 wiphy_ext_feature_set(hw->wiphy, 669 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 670 wiphy_ext_feature_set(hw->wiphy, 671 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 672 wiphy_ext_feature_set(hw->wiphy, 673 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 674 675 /* Old firmware also supports probe deferral and suppression */ 676 if (scan_ver < 15) 677 wiphy_ext_feature_set(hw->wiphy, 678 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 679 } 680 681 hw->wiphy->iftype_ext_capab = NULL; 682 hw->wiphy->num_iftype_ext_capab = 0; 683 684 if (mvm->nvm_data->sku_cap_11ax_enable && 685 !iwlwifi_mod_params.disable_11ax) { 686 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa; 687 hw->wiphy->num_iftype_ext_capab = 688 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 689 690 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 691 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 692 } 693 694 if (iwl_fw_lookup_cmd_ver(mvm->fw, 695 WIDE_ID(DATA_PATH_GROUP, 696 WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD), 697 IWL_FW_CMD_VER_UNKNOWN) >= 1) { 698 IWL_DEBUG_INFO(mvm->trans, "Timing measurement supported\n"); 699 700 if (!hw->wiphy->iftype_ext_capab) { 701 hw->wiphy->num_iftype_ext_capab = 1; 702 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 703 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 704 } else { 705 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 1; 706 } 707 } 708 709 if (iwl_fw_lookup_cmd_ver(mvm->fw, WIDE_ID(LOCATION_GROUP, 710 TOF_RANGE_REQ_CMD), 711 IWL_FW_CMD_VER_UNKNOWN) >= 11) { 712 wiphy_ext_feature_set(hw->wiphy, 713 NL80211_EXT_FEATURE_PROT_RANGE_NEGO_AND_MEASURE); 714 715 if (fw_has_capa(&mvm->fw->ucode_capa, 716 IWL_UCODE_TLV_CAPA_SECURE_LTF_SUPPORT)) 717 wiphy_ext_feature_set(hw->wiphy, 718 NL80211_EXT_FEATURE_SECURE_LTF); 719 } 720 721 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 722 723#ifdef CONFIG_PM_SLEEP 724 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 725 mvm->trans->ops->d3_suspend && 726 mvm->trans->ops->d3_resume && 727 device_can_wakeup(mvm->trans->dev)) { 728 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 729 WIPHY_WOWLAN_DISCONNECT | 730 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 731 WIPHY_WOWLAN_RFKILL_RELEASE | 732 WIPHY_WOWLAN_NET_DETECT; 733 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 734 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 735 WIPHY_WOWLAN_4WAY_HANDSHAKE; 736 737 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 738 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 739 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 740 mvm->wowlan.max_nd_match_sets = 741 iwl_umac_scan_get_max_profiles(mvm->fw); 742 hw->wiphy->wowlan = &mvm->wowlan; 743 } 744#endif 745 746 ret = iwl_mvm_leds_init(mvm); 747 if (ret) 748 return ret; 749 750 if (fw_has_capa(&mvm->fw->ucode_capa, 751 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 752 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 753 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 754 ieee80211_hw_set(hw, TDLS_WIDER_BW); 755 } 756 757 if (fw_has_capa(&mvm->fw->ucode_capa, 758 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 759 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 760 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 761 } 762 763 hw->netdev_features |= mvm->cfg->features; 764 if (!iwl_mvm_is_csum_supported(mvm)) 765 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK; 766 767 if (mvm->cfg->vht_mu_mimo_supported) 768 wiphy_ext_feature_set(hw->wiphy, 769 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 770 771 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT)) 772 wiphy_ext_feature_set(hw->wiphy, 773 NL80211_EXT_FEATURE_PROTECTED_TWT); 774 775 iwl_mvm_vendor_cmds_register(mvm); 776 777 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 778 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 779 780 ret = ieee80211_register_hw(mvm->hw); 781 if (ret) { 782 iwl_mvm_leds_exit(mvm); 783 } 784 785 return ret; 786} 787 788static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 789 struct ieee80211_sta *sta) 790{ 791 if (likely(sta)) { 792 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 793 return; 794 } else { 795 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 796 return; 797 } 798 799 ieee80211_free_txskb(mvm->hw, skb); 800} 801 802void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 803 struct ieee80211_tx_control *control, struct sk_buff *skb) 804{ 805 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 806 struct ieee80211_sta *sta = control->sta; 807 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 808 struct ieee80211_hdr *hdr = (void *)skb->data; 809 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 810 IEEE80211_TX_CTL_TX_OFFCHAN; 811 u32 link_id = u32_get_bits(info->control.flags, 812 IEEE80211_TX_CTRL_MLO_LINK); 813 struct ieee80211_sta *tmp_sta = sta; 814 815 if (iwl_mvm_is_radio_killed(mvm)) { 816 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 817 goto drop; 818 } 819 820 if (offchannel && 821 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 822 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 823 goto drop; 824 825 /* 826 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs 827 * so we treat the others as broadcast 828 */ 829 if (ieee80211_is_mgmt(hdr->frame_control)) 830 sta = NULL; 831 832 /* If there is no sta, and it's not offchannel - send through AP */ 833 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 834 !offchannel) { 835 struct iwl_mvm_vif *mvmvif = 836 iwl_mvm_vif_from_mac80211(info->control.vif); 837 u8 ap_sta_id = READ_ONCE(mvmvif->deflink.ap_sta_id); 838 839 if (ap_sta_id < mvm->fw->ucode_capa.num_stations) { 840 /* mac80211 holds rcu read lock */ 841 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); 842 if (IS_ERR_OR_NULL(sta)) 843 goto drop; 844 } 845 } 846 847 if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED && 848 !ieee80211_is_probe_resp(hdr->frame_control)) { 849 /* translate MLD addresses to LINK addresses */ 850 struct ieee80211_link_sta *link_sta = 851 rcu_dereference(tmp_sta->link[link_id]); 852 struct ieee80211_bss_conf *link_conf = 853 rcu_dereference(info->control.vif->link_conf[link_id]); 854 struct ieee80211_mgmt *mgmt; 855 856 if (WARN_ON(!link_sta || !link_conf)) 857 goto drop; 858 859 /* if sta is NULL, the frame is a management frame */ 860 mgmt = (void *)hdr; 861 memcpy(mgmt->da, link_sta->addr, ETH_ALEN); 862 memcpy(mgmt->sa, link_conf->addr, ETH_ALEN); 863 memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN); 864 } 865 866 iwl_mvm_tx_skb(mvm, skb, sta); 867 return; 868 drop: 869 ieee80211_free_txskb(hw, skb); 870} 871 872void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 873{ 874 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 875 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 876 struct sk_buff *skb = NULL; 877 878 /* 879 * No need for threads to be pending here, they can leave the first 880 * taker all the work. 881 * 882 * mvmtxq->tx_request logic: 883 * 884 * If 0, no one is currently TXing, set to 1 to indicate current thread 885 * will now start TX and other threads should quit. 886 * 887 * If 1, another thread is currently TXing, set to 2 to indicate to 888 * that thread that there was another request. Since that request may 889 * have raced with the check whether the queue is empty, the TXing 890 * thread should check the queue's status one more time before leaving. 891 * This check is done in order to not leave any TX hanging in the queue 892 * until the next TX invocation (which may not even happen). 893 * 894 * If 2, another thread is currently TXing, and it will already double 895 * check the queue, so do nothing. 896 */ 897 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 898 return; 899 900 rcu_read_lock(); 901 do { 902 while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL, 903 &mvmtxq->state) && 904 !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT, 905 &mvmtxq->state) && 906 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) { 907 skb = ieee80211_tx_dequeue(hw, txq); 908 909 if (!skb) { 910 if (txq->sta) 911 IWL_DEBUG_TX(mvm, 912 "TXQ of sta %pM tid %d is now empty\n", 913 txq->sta->addr, 914 txq->tid); 915 break; 916 } 917 918 iwl_mvm_tx_skb(mvm, skb, txq->sta); 919 } 920 } while (atomic_dec_return(&mvmtxq->tx_request)); 921 rcu_read_unlock(); 922} 923 924void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 925 struct ieee80211_txq *txq) 926{ 927 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 928 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 929 930 if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) || 931 !txq->sta) { 932 iwl_mvm_mac_itxq_xmit(hw, txq); 933 return; 934 } 935 936 /* iwl_mvm_mac_itxq_xmit() will later be called by the worker 937 * to handle any packets we leave on the txq now 938 */ 939 940 spin_lock_bh(&mvm->add_stream_lock); 941 /* The list is being deleted only after the queue is fully allocated. */ 942 if (list_empty(&mvmtxq->list) && 943 /* recheck under lock */ 944 !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) { 945 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 946 schedule_work(&mvm->add_stream_wk); 947 } 948 spin_unlock_bh(&mvm->add_stream_lock); 949} 950 951#define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 952 do { \ 953 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 954 break; \ 955 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 956 } while (0) 957 958static void 959iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 960 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 961 enum ieee80211_ampdu_mlme_action action) 962{ 963 struct iwl_fw_dbg_trigger_tlv *trig; 964 struct iwl_fw_dbg_trigger_ba *ba_trig; 965 966 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 967 FW_DBG_TRIGGER_BA); 968 if (!trig) 969 return; 970 971 ba_trig = (void *)trig->data; 972 973 switch (action) { 974 case IEEE80211_AMPDU_TX_OPERATIONAL: { 975 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 976 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 977 978 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 979 "TX AGG START: MAC %pM tid %d ssn %d\n", 980 sta->addr, tid, tid_data->ssn); 981 break; 982 } 983 case IEEE80211_AMPDU_TX_STOP_CONT: 984 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 985 "TX AGG STOP: MAC %pM tid %d\n", 986 sta->addr, tid); 987 break; 988 case IEEE80211_AMPDU_RX_START: 989 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 990 "RX AGG START: MAC %pM tid %d ssn %d\n", 991 sta->addr, tid, rx_ba_ssn); 992 break; 993 case IEEE80211_AMPDU_RX_STOP: 994 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 995 "RX AGG STOP: MAC %pM tid %d\n", 996 sta->addr, tid); 997 break; 998 default: 999 break; 1000 } 1001} 1002 1003int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 1004 struct ieee80211_vif *vif, 1005 struct ieee80211_ampdu_params *params) 1006{ 1007 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1008 int ret; 1009 struct ieee80211_sta *sta = params->sta; 1010 enum ieee80211_ampdu_mlme_action action = params->action; 1011 u16 tid = params->tid; 1012 u16 *ssn = ¶ms->ssn; 1013 u16 buf_size = params->buf_size; 1014 bool amsdu = params->amsdu; 1015 u16 timeout = params->timeout; 1016 1017 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 1018 sta->addr, tid, action); 1019 1020 if (!(mvm->nvm_data->sku_cap_11n_enable)) 1021 return -EACCES; 1022 1023 mutex_lock(&mvm->mutex); 1024 1025 switch (action) { 1026 case IEEE80211_AMPDU_RX_START: 1027 if (iwl_mvm_vif_from_mac80211(vif)->deflink.ap_sta_id == 1028 iwl_mvm_sta_from_mac80211(sta)->deflink.sta_id) { 1029 struct iwl_mvm_vif *mvmvif; 1030 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 1031 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 1032 1033 mdata->opened_rx_ba_sessions = true; 1034 mvmvif = iwl_mvm_vif_from_mac80211(vif); 1035 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 1036 } 1037 if (!iwl_enable_rx_ampdu()) { 1038 ret = -EINVAL; 1039 break; 1040 } 1041 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 1042 timeout); 1043 break; 1044 case IEEE80211_AMPDU_RX_STOP: 1045 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 1046 timeout); 1047 break; 1048 case IEEE80211_AMPDU_TX_START: 1049 if (!iwl_enable_tx_ampdu()) { 1050 ret = -EINVAL; 1051 break; 1052 } 1053 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 1054 break; 1055 case IEEE80211_AMPDU_TX_STOP_CONT: 1056 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 1057 break; 1058 case IEEE80211_AMPDU_TX_STOP_FLUSH: 1059 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1060 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 1061 break; 1062 case IEEE80211_AMPDU_TX_OPERATIONAL: 1063 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 1064 buf_size, amsdu); 1065 break; 1066 default: 1067 WARN_ON_ONCE(1); 1068 ret = -EINVAL; 1069 break; 1070 } 1071 1072 if (!ret) { 1073 u16 rx_ba_ssn = 0; 1074 1075 if (action == IEEE80211_AMPDU_RX_START) 1076 rx_ba_ssn = *ssn; 1077 1078 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 1079 rx_ba_ssn, action); 1080 } 1081 mutex_unlock(&mvm->mutex); 1082 1083 return ret; 1084} 1085 1086static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1087 struct ieee80211_vif *vif) 1088{ 1089 struct iwl_mvm *mvm = data; 1090 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1091 struct iwl_probe_resp_data *probe_data; 1092 unsigned int link_id; 1093 1094 mvmvif->uploaded = false; 1095 1096 spin_lock_bh(&mvm->time_event_lock); 1097 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1098 spin_unlock_bh(&mvm->time_event_lock); 1099 1100 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 1101 mvmvif->ap_sta = NULL; 1102 1103 for_each_mvm_vif_valid_link(mvmvif, link_id) { 1104 mvmvif->link[link_id]->ap_sta_id = IWL_MVM_INVALID_STA; 1105 mvmvif->link[link_id]->fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1106 mvmvif->link[link_id]->phy_ctxt = NULL; 1107 mvmvif->link[link_id]->active = 0; 1108 mvmvif->link[link_id]->igtk = NULL; 1109 } 1110 1111 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1112 lockdep_is_held(&mvm->mutex)); 1113 if (probe_data) 1114 kfree_rcu(probe_data, rcu_head); 1115 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1116} 1117 1118static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1119{ 1120 iwl_mvm_stop_device(mvm); 1121 1122 mvm->cur_aid = 0; 1123 1124 mvm->scan_status = 0; 1125 mvm->ps_disabled = false; 1126 mvm->rfkill_safe_init_done = false; 1127 1128 /* just in case one was running */ 1129 iwl_mvm_cleanup_roc_te(mvm); 1130 ieee80211_remain_on_channel_expired(mvm->hw); 1131 1132 iwl_mvm_ftm_restart(mvm); 1133 1134 /* 1135 * cleanup all interfaces, even inactive ones, as some might have 1136 * gone down during the HW restart 1137 */ 1138 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1139 1140 mvm->p2p_device_vif = NULL; 1141 1142 iwl_mvm_reset_phy_ctxts(mvm); 1143 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1144 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1145 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1146 1147 ieee80211_wake_queues(mvm->hw); 1148 1149 mvm->rx_ba_sessions = 0; 1150 mvm->fwrt.dump.conf = FW_DBG_INVALID; 1151 mvm->monitor_on = false; 1152#ifdef CONFIG_IWLWIFI_DEBUGFS 1153 mvm->beacon_inject_active = false; 1154#endif 1155 1156 /* keep statistics ticking */ 1157 iwl_mvm_accu_radio_stats(mvm); 1158} 1159 1160int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1161{ 1162 int ret; 1163 1164 lockdep_assert_held(&mvm->mutex); 1165 1166 ret = iwl_mvm_mei_get_ownership(mvm); 1167 if (ret) 1168 return ret; 1169 1170 if (mvm->mei_nvm_data) { 1171 /* We got the NIC, we can now free the MEI NVM data */ 1172 kfree(mvm->mei_nvm_data); 1173 mvm->mei_nvm_data = NULL; 1174 1175 /* 1176 * We can't free the nvm_data we allocated based on the SAP 1177 * data because we registered to cfg80211 with the channels 1178 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data 1179 * just in order to be able free it later. 1180 * NULLify nvm_data so that we will read the NVM from the 1181 * firmware this time. 1182 */ 1183 mvm->temp_nvm_data = mvm->nvm_data; 1184 mvm->nvm_data = NULL; 1185 } 1186 1187 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1188 /* 1189 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1190 * so later code will - from now on - see that we're doing it. 1191 */ 1192 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1193 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1194 /* Clean up some internal and mac80211 state on restart */ 1195 iwl_mvm_restart_cleanup(mvm); 1196 } 1197 ret = iwl_mvm_up(mvm); 1198 1199 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1200 NULL); 1201 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1202 NULL); 1203 1204 mvm->last_reset_or_resume_time_jiffies = jiffies; 1205 1206 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1207 /* Something went wrong - we need to finish some cleanup 1208 * that normally iwl_mvm_mac_restart_complete() below 1209 * would do. 1210 */ 1211 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1212 } 1213 1214 return ret; 1215} 1216 1217int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1218{ 1219 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1220 int ret; 1221 1222 mutex_lock(&mvm->mutex); 1223 1224 /* we are starting the mac not in error flow, and restart is enabled */ 1225 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && 1226 iwlwifi_mod_params.fw_restart) { 1227 /* 1228 * This will prevent mac80211 recovery flows to trigger during 1229 * init failures 1230 */ 1231 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1232 } 1233 1234 ret = __iwl_mvm_mac_start(mvm); 1235 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1236 1237 mutex_unlock(&mvm->mutex); 1238 1239 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1240 1241 return ret; 1242} 1243 1244static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1245{ 1246 int ret; 1247 1248 mutex_lock(&mvm->mutex); 1249 1250 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1251 1252 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1253 if (ret) 1254 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1255 ret); 1256 1257 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1258 1259 /* 1260 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1261 * of packets the FW sent out, so we must reconnect. 1262 */ 1263 iwl_mvm_teardown_tdls_peers(mvm); 1264 1265 mutex_unlock(&mvm->mutex); 1266} 1267 1268void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1269 enum ieee80211_reconfig_type reconfig_type) 1270{ 1271 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1272 1273 switch (reconfig_type) { 1274 case IEEE80211_RECONFIG_TYPE_RESTART: 1275 iwl_mvm_restart_complete(mvm); 1276 break; 1277 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1278 break; 1279 } 1280} 1281 1282void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1283{ 1284 lockdep_assert_held(&mvm->mutex); 1285 1286 iwl_mvm_ftm_initiator_smooth_stop(mvm); 1287 1288 /* firmware counters are obviously reset now, but we shouldn't 1289 * partially track so also clear the fw_reset_accu counters. 1290 */ 1291 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1292 1293 /* async_handlers_wk is now blocked */ 1294 1295 if (!iwl_mvm_has_new_station_api(mvm->fw)) 1296 iwl_mvm_rm_aux_sta(mvm); 1297 1298 iwl_mvm_stop_device(mvm); 1299 1300 iwl_mvm_async_handlers_purge(mvm); 1301 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1302 1303 /* 1304 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1305 * hw (as restart_complete() won't be called in this case) and mac80211 1306 * won't execute the restart. 1307 * But make sure to cleanup interfaces that have gone down before/during 1308 * HW restart was requested. 1309 */ 1310 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1311 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1312 &mvm->status)) 1313 ieee80211_iterate_interfaces(mvm->hw, 0, 1314 iwl_mvm_cleanup_iterator, mvm); 1315 1316 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1317 * make sure there's nothing left there and warn if any is found. 1318 */ 1319 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1320 int i; 1321 1322 for (i = 0; i < mvm->max_scans; i++) { 1323 if (WARN_ONCE(mvm->scan_uid_status[i], 1324 "UMAC scan UID %d status was not cleaned\n", 1325 i)) 1326 mvm->scan_uid_status[i] = 0; 1327 } 1328 } 1329} 1330 1331void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1332{ 1333 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1334 1335 flush_work(&mvm->async_handlers_wk); 1336 flush_work(&mvm->add_stream_wk); 1337 1338 /* 1339 * Lock and clear the firmware running bit here already, so that 1340 * new commands coming in elsewhere, e.g. from debugfs, will not 1341 * be able to proceed. This is important here because one of those 1342 * debugfs files causes the firmware dump to be triggered, and if we 1343 * don't stop debugfs accesses before canceling that it could be 1344 * retriggered after we flush it but before we've cleared the bit. 1345 */ 1346 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1347 1348 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1349 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1350 1351 /* 1352 * The work item could be running or queued if the 1353 * ROC time event stops just as we get here. 1354 */ 1355 flush_work(&mvm->roc_done_wk); 1356 1357 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1358 1359 mutex_lock(&mvm->mutex); 1360 __iwl_mvm_mac_stop(mvm); 1361 mutex_unlock(&mvm->mutex); 1362 1363 /* 1364 * The worker might have been waiting for the mutex, let it run and 1365 * discover that its list is now empty. 1366 */ 1367 cancel_work_sync(&mvm->async_handlers_wk); 1368 wiphy_work_cancel(hw->wiphy, &mvm->async_handlers_wiphy_wk); 1369} 1370 1371struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1372{ 1373 u16 i; 1374 1375 lockdep_assert_held(&mvm->mutex); 1376 1377 for (i = 0; i < NUM_PHY_CTX; i++) 1378 if (!mvm->phy_ctxts[i].ref) 1379 return &mvm->phy_ctxts[i]; 1380 1381 IWL_ERR(mvm, "No available PHY context\n"); 1382 return NULL; 1383} 1384 1385int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1386 s16 tx_power) 1387{ 1388 u32 cmd_id = REDUCE_TX_POWER_CMD; 1389 int len; 1390 struct iwl_dev_tx_power_cmd cmd = { 1391 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1392 .common.mac_context_id = 1393 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1394 .common.pwr_restriction = cpu_to_le16(8 * tx_power), 1395 }; 1396 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 1397 IWL_FW_CMD_VER_UNKNOWN); 1398 1399 if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1400 cmd.common.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1401 1402 if (cmd_ver == 7) 1403 len = sizeof(cmd.v7); 1404 else if (cmd_ver == 6) 1405 len = sizeof(cmd.v6); 1406 else if (fw_has_api(&mvm->fw->ucode_capa, 1407 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1408 len = sizeof(cmd.v5); 1409 else if (fw_has_capa(&mvm->fw->ucode_capa, 1410 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1411 len = sizeof(cmd.v4); 1412 else 1413 len = sizeof(cmd.v3); 1414 1415 /* all structs have the same common part, add it */ 1416 len += sizeof(cmd.common); 1417 1418 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, &cmd); 1419} 1420 1421int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1422 struct ieee80211_vif *vif, 1423 struct ieee80211_bss_conf *link_conf) 1424{ 1425 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1426 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1427 int ret; 1428 1429 mutex_lock(&mvm->mutex); 1430 1431 if (vif->type == NL80211_IFTYPE_STATION) { 1432 struct iwl_mvm_sta *mvmsta; 1433 unsigned int link_id = link_conf->link_id; 1434 u8 ap_sta_id = mvmvif->link[link_id]->ap_sta_id; 1435 1436 mvmvif->csa_bcn_pending = false; 1437 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, ap_sta_id); 1438 1439 if (WARN_ON(!mvmsta)) { 1440 ret = -EIO; 1441 goto out_unlock; 1442 } 1443 1444 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1445 if (mvm->mld_api_is_used) 1446 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false); 1447 else 1448 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1449 1450 if (!fw_has_capa(&mvm->fw->ucode_capa, 1451 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1452 ret = iwl_mvm_enable_beacon_filter(mvm, vif); 1453 if (ret) 1454 goto out_unlock; 1455 1456 iwl_mvm_stop_session_protection(mvm, vif); 1457 } 1458 } 1459 1460 mvmvif->ps_disabled = false; 1461 1462 ret = iwl_mvm_power_update_ps(mvm); 1463 1464out_unlock: 1465 if (mvmvif->csa_failed) 1466 ret = -EIO; 1467 mutex_unlock(&mvm->mutex); 1468 1469 return ret; 1470} 1471 1472void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1473 struct ieee80211_vif *vif, 1474 struct ieee80211_bss_conf *link_conf) 1475{ 1476 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1477 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1478 struct iwl_chan_switch_te_cmd cmd = { 1479 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1480 mvmvif->color)), 1481 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1482 }; 1483 1484 /* 1485 * In the new flow since FW is in charge of the timing, 1486 * if driver has canceled the channel switch he will receive the 1487 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it 1488 */ 1489 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 1490 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 1491 return; 1492 1493 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1494 1495 mutex_lock(&mvm->mutex); 1496 if (!fw_has_capa(&mvm->fw->ucode_capa, 1497 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1498 iwl_mvm_remove_csa_period(mvm, vif); 1499 else 1500 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1501 WIDE_ID(MAC_CONF_GROUP, 1502 CHANNEL_SWITCH_TIME_EVENT_CMD), 1503 0, sizeof(cmd), &cmd)); 1504 mvmvif->csa_failed = true; 1505 mutex_unlock(&mvm->mutex); 1506 1507 /* If we're here, we can't support MLD */ 1508 iwl_mvm_post_channel_switch(hw, vif, &vif->bss_conf); 1509} 1510 1511void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1512{ 1513 struct iwl_mvm_vif *mvmvif; 1514 struct ieee80211_vif *vif; 1515 1516 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1517 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1518 1519 /* Trigger disconnect (should clear the CSA state) */ 1520 ieee80211_chswitch_done(vif, false, 0); 1521} 1522 1523static u8 1524iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef) 1525{ 1526 int data_start; 1527 int control_start; 1528 int bw; 1529 1530 if (chandef->width == NL80211_CHAN_WIDTH_320) 1531 bw = 320; 1532 else if (chandef->width == NL80211_CHAN_WIDTH_160) 1533 bw = 160; 1534 else 1535 return 0; 1536 1537 /* data is bw wide so the start is half the width */ 1538 data_start = chandef->center_freq1 - bw / 2; 1539 /* control is 20Mhz width */ 1540 control_start = chandef->chan->center_freq - 10; 1541 1542 return (control_start - data_start) / 80; 1543} 1544 1545static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm, 1546 struct ieee80211_vif *vif) 1547{ 1548 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1549 int ret; 1550 1551 lockdep_assert_held(&mvm->mutex); 1552 1553 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1554 if (ret) { 1555 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1556 return ret; 1557 } 1558 1559 /* Only queue for this station is the mcast queue, 1560 * which shouldn't be in TFD mask anyway 1561 */ 1562 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0, 1563 vif->type, 1564 IWL_STA_MULTICAST); 1565} 1566 1567static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1568 struct ieee80211_vif *vif) 1569{ 1570 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1571 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1572 int ret; 1573 int i; 1574 1575 mutex_lock(&mvm->mutex); 1576 1577 mvmvif->mvm = mvm; 1578 1579 /* the first link always points to the default one */ 1580 mvmvif->deflink.fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1581 mvmvif->deflink.active = 0; 1582 mvmvif->link[0] = &mvmvif->deflink; 1583 1584 ret = iwl_mvm_set_link_mapping(mvm, vif, &vif->bss_conf); 1585 if (ret) 1586 goto out; 1587 1588 /* 1589 * Not much to do here. The stack will not allow interface 1590 * types or combinations that we didn't advertise, so we 1591 * don't really have to check the types. 1592 */ 1593 1594 /* make sure that beacon statistics don't go backwards with FW reset */ 1595 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1596 for_each_mvm_vif_valid_link(mvmvif, i) 1597 mvmvif->link[i]->beacon_stats.accu_num_beacons += 1598 mvmvif->link[i]->beacon_stats.num_beacons; 1599 1600 /* Allocate resources for the MAC context, and add it to the fw */ 1601 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1602 if (ret) 1603 goto out; 1604 1605 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1606 1607 /* Currently not much to do for NAN */ 1608 if (vif->type == NL80211_IFTYPE_NAN) { 1609 ret = 0; 1610 goto out; 1611 } 1612 1613 /* 1614 * The AP binding flow can be done only after the beacon 1615 * template is configured (which happens only in the mac80211 1616 * start_ap() flow), and adding the broadcast station can happen 1617 * only after the binding. 1618 * In addition, since modifying the MAC before adding a bcast 1619 * station is not allowed by the FW, delay the adding of MAC context to 1620 * the point where we can also add the bcast station. 1621 * In short: there's not much we can do at this point, other than 1622 * allocating resources :) 1623 */ 1624 if (vif->type == NL80211_IFTYPE_AP || 1625 vif->type == NL80211_IFTYPE_ADHOC) { 1626 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1627 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1628 ret = 0; 1629 goto out; 1630 } 1631 1632 mvmvif->features |= hw->netdev_features; 1633 1634 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1635 if (ret) 1636 goto out_unlock; 1637 1638 ret = iwl_mvm_power_update_mac(mvm); 1639 if (ret) 1640 goto out_remove_mac; 1641 1642 /* beacon filtering */ 1643 ret = iwl_mvm_disable_beacon_filter(mvm, vif); 1644 if (ret) 1645 goto out_remove_mac; 1646 1647 if (!mvm->bf_allowed_vif && 1648 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1649 mvm->bf_allowed_vif = mvmvif; 1650 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1651 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1652 } 1653 1654 if (vif->p2p || iwl_fw_lookup_cmd_ver(mvm->fw, PHY_CONTEXT_CMD, 1) < 5) 1655 vif->driver_flags |= IEEE80211_VIF_IGNORE_OFDMA_WIDER_BW; 1656 1657 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 1658 mvm->p2p_device_vif = vif; 1659 1660 iwl_mvm_tcm_add_vif(mvm, vif); 1661 INIT_DELAYED_WORK(&mvmvif->csa_work, 1662 iwl_mvm_channel_switch_disconnect_wk); 1663 1664 if (vif->type == NL80211_IFTYPE_MONITOR) { 1665 mvm->monitor_on = true; 1666 mvm->monitor_p80 = 1667 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chanreq.oper); 1668 } 1669 1670 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1671 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1672 1673 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1674 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1675 !mvm->csme_vif && mvm->mei_registered) { 1676 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1677 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1678 mvm->csme_vif = vif; 1679 } 1680 1681out: 1682 if (!ret && (vif->type == NL80211_IFTYPE_AP || 1683 vif->type == NL80211_IFTYPE_ADHOC)) 1684 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif); 1685 1686 goto out_unlock; 1687 1688 out_remove_mac: 1689 mvmvif->deflink.phy_ctxt = NULL; 1690 iwl_mvm_mac_ctxt_remove(mvm, vif); 1691 out_unlock: 1692 mutex_unlock(&mvm->mutex); 1693 1694 return ret; 1695} 1696 1697void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1698 struct ieee80211_vif *vif) 1699{ 1700 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1701 /* 1702 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1703 * We assume here that all the packets sent to the OFFCHANNEL 1704 * queue are sent in ROC session. 1705 */ 1706 flush_work(&mvm->roc_done_wk); 1707 } 1708} 1709 1710/* This function is doing the common part of removing the interface for 1711 * both - MLD and non-MLD modes. Returns true if removing the interface 1712 * is done 1713 */ 1714static bool iwl_mvm_mac_remove_interface_common(struct ieee80211_hw *hw, 1715 struct ieee80211_vif *vif) 1716{ 1717 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1718 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1719 struct iwl_probe_resp_data *probe_data; 1720 1721 iwl_mvm_prepare_mac_removal(mvm, vif); 1722 1723 if (!(vif->type == NL80211_IFTYPE_AP || 1724 vif->type == NL80211_IFTYPE_ADHOC)) 1725 iwl_mvm_tcm_rm_vif(mvm, vif); 1726 1727 mutex_lock(&mvm->mutex); 1728 1729 if (vif == mvm->csme_vif) { 1730 iwl_mei_set_netdev(NULL); 1731 mvm->csme_vif = NULL; 1732 } 1733 1734 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1735 lockdep_is_held(&mvm->mutex)); 1736 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1737 if (probe_data) 1738 kfree_rcu(probe_data, rcu_head); 1739 1740 if (mvm->bf_allowed_vif == mvmvif) { 1741 mvm->bf_allowed_vif = NULL; 1742 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1743 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1744 } 1745 1746 if (vif->bss_conf.ftm_responder) 1747 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1748 1749 iwl_mvm_vif_dbgfs_rm_link(mvm, vif); 1750 1751 /* 1752 * For AP/GO interface, the tear down of the resources allocated to the 1753 * interface is be handled as part of the stop_ap flow. 1754 */ 1755 if (vif->type == NL80211_IFTYPE_AP || 1756 vif->type == NL80211_IFTYPE_ADHOC) { 1757#ifdef CONFIG_NL80211_TESTMODE 1758 if (vif == mvm->noa_vif) { 1759 mvm->noa_vif = NULL; 1760 mvm->noa_duration = 0; 1761 } 1762#endif 1763 return true; 1764 } 1765 1766 iwl_mvm_power_update_mac(mvm); 1767 return false; 1768} 1769 1770static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1771 struct ieee80211_vif *vif) 1772{ 1773 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1774 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1775 1776 if (iwl_mvm_mac_remove_interface_common(hw, vif)) 1777 goto out; 1778 1779 /* Before the interface removal, mac80211 would cancel the ROC, and the 1780 * ROC worker would be scheduled if needed. The worker would be flushed 1781 * in iwl_mvm_prepare_mac_removal() and thus at this point there is no 1782 * binding etc. so nothing needs to be done here. 1783 */ 1784 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1785 if (mvmvif->deflink.phy_ctxt) { 1786 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 1787 mvmvif->deflink.phy_ctxt = NULL; 1788 } 1789 mvm->p2p_device_vif = NULL; 1790 } 1791 1792 iwl_mvm_unset_link_mapping(mvm, vif, &vif->bss_conf); 1793 iwl_mvm_mac_ctxt_remove(mvm, vif); 1794 1795 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1796 1797 if (vif->type == NL80211_IFTYPE_MONITOR) 1798 mvm->monitor_on = false; 1799 1800out: 1801 if (vif->type == NL80211_IFTYPE_AP || 1802 vif->type == NL80211_IFTYPE_ADHOC) { 1803 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta); 1804 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1805 } 1806 1807 mutex_unlock(&mvm->mutex); 1808} 1809 1810struct iwl_mvm_mc_iter_data { 1811 struct iwl_mvm *mvm; 1812 int port_id; 1813}; 1814 1815static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1816 struct ieee80211_vif *vif) 1817{ 1818 struct iwl_mvm_mc_iter_data *data = _data; 1819 struct iwl_mvm *mvm = data->mvm; 1820 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1821 struct iwl_host_cmd hcmd = { 1822 .id = MCAST_FILTER_CMD, 1823 .flags = CMD_ASYNC, 1824 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1825 }; 1826 int ret, len; 1827 1828 /* if we don't have free ports, mcast frames will be dropped */ 1829 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1830 return; 1831 1832 if (vif->type != NL80211_IFTYPE_STATION || 1833 !vif->cfg.assoc) 1834 return; 1835 1836 cmd->port_id = data->port_id++; 1837 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1838 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1839 1840 hcmd.len[0] = len; 1841 hcmd.data[0] = cmd; 1842 1843 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1844 if (ret) 1845 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1846} 1847 1848static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1849{ 1850 struct iwl_mvm_mc_iter_data iter_data = { 1851 .mvm = mvm, 1852 }; 1853 int ret; 1854 1855 lockdep_assert_held(&mvm->mutex); 1856 1857 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1858 return; 1859 1860 ieee80211_iterate_active_interfaces_atomic( 1861 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1862 iwl_mvm_mc_iface_iterator, &iter_data); 1863 1864 /* 1865 * Send a (synchronous) ech command so that we wait for the 1866 * multiple asynchronous MCAST_FILTER_CMD commands sent by 1867 * the interface iterator. Otherwise, we might get here over 1868 * and over again (by userspace just sending a lot of these) 1869 * and the CPU can send them faster than the firmware can 1870 * process them. 1871 * Note that the CPU is still faster - but with this we'll 1872 * actually send fewer commands overall because the CPU will 1873 * not schedule the work in mac80211 as frequently if it's 1874 * still running when rescheduled (possibly multiple times). 1875 */ 1876 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1877 if (ret) 1878 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 1879} 1880 1881u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1882 struct netdev_hw_addr_list *mc_list) 1883{ 1884 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1885 struct iwl_mcast_filter_cmd *cmd; 1886 struct netdev_hw_addr *addr; 1887 int addr_count; 1888 bool pass_all; 1889 int len; 1890 1891 addr_count = netdev_hw_addr_list_count(mc_list); 1892 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1893 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1894 if (pass_all) 1895 addr_count = 0; 1896 1897 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1898 cmd = kzalloc(len, GFP_ATOMIC); 1899 if (!cmd) 1900 return 0; 1901 1902 if (pass_all) { 1903 cmd->pass_all = 1; 1904 return (u64)(unsigned long)cmd; 1905 } 1906 1907 netdev_hw_addr_list_for_each(addr, mc_list) { 1908 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1909 cmd->count, addr->addr); 1910 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1911 addr->addr, ETH_ALEN); 1912 cmd->count++; 1913 } 1914 1915 return (u64)(unsigned long)cmd; 1916} 1917 1918void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1919 unsigned int changed_flags, 1920 unsigned int *total_flags, u64 multicast) 1921{ 1922 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1923 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1924 1925 mutex_lock(&mvm->mutex); 1926 1927 /* replace previous configuration */ 1928 kfree(mvm->mcast_filter_cmd); 1929 mvm->mcast_filter_cmd = cmd; 1930 1931 if (!cmd) 1932 goto out; 1933 1934 if (changed_flags & FIF_ALLMULTI) 1935 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 1936 1937 if (cmd->pass_all) 1938 cmd->count = 0; 1939 1940 iwl_mvm_recalc_multicast(mvm); 1941out: 1942 mutex_unlock(&mvm->mutex); 1943 *total_flags = 0; 1944} 1945 1946static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1947 struct ieee80211_vif *vif, 1948 unsigned int filter_flags, 1949 unsigned int changed_flags) 1950{ 1951 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1952 1953 /* We support only filter for probe requests */ 1954 if (!(changed_flags & FIF_PROBE_REQ)) 1955 return; 1956 1957 /* Supported only for p2p client interfaces */ 1958 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc || 1959 !vif->p2p) 1960 return; 1961 1962 mutex_lock(&mvm->mutex); 1963 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1964 mutex_unlock(&mvm->mutex); 1965} 1966 1967int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1968{ 1969 struct iwl_mu_group_mgmt_cmd cmd = {}; 1970 1971 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 1972 WLAN_MEMBERSHIP_LEN); 1973 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 1974 WLAN_USER_POSITION_LEN); 1975 1976 return iwl_mvm_send_cmd_pdu(mvm, 1977 WIDE_ID(DATA_PATH_GROUP, 1978 UPDATE_MU_GROUPS_CMD), 1979 0, sizeof(cmd), &cmd); 1980} 1981 1982static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 1983 struct ieee80211_vif *vif) 1984{ 1985 if (vif->bss_conf.mu_mimo_owner) { 1986 struct iwl_mu_group_mgmt_notif *notif = _data; 1987 1988 /* 1989 * MU-MIMO Group Id action frame is little endian. We treat 1990 * the data received from firmware as if it came from the 1991 * action frame, so no conversion is needed. 1992 */ 1993 ieee80211_update_mu_groups(vif, 0, 1994 (u8 *)¬if->membership_status, 1995 (u8 *)¬if->user_position); 1996 } 1997} 1998 1999void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 2000 struct iwl_rx_cmd_buffer *rxb) 2001{ 2002 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2003 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 2004 2005 ieee80211_iterate_active_interfaces_atomic( 2006 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 2007 iwl_mvm_mu_mimo_iface_iterator, notif); 2008} 2009 2010static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 2011{ 2012 u8 byte_num = ppe_pos_bit / 8; 2013 u8 bit_num = ppe_pos_bit % 8; 2014 u8 residue_bits; 2015 u8 res; 2016 2017 if (bit_num <= 5) 2018 return (ppe[byte_num] >> bit_num) & 2019 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 2020 2021 /* 2022 * If bit_num > 5, we have to combine bits with next byte. 2023 * Calculate how many bits we need to take from current byte (called 2024 * here "residue_bits"), and add them to bits from next byte. 2025 */ 2026 2027 residue_bits = 8 - bit_num; 2028 2029 res = (ppe[byte_num + 1] & 2030 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 2031 residue_bits; 2032 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 2033 2034 return res; 2035} 2036 2037static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 2038 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 2039 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit, 2040 bool inheritance) 2041{ 2042 int i; 2043 2044 /* 2045 * FW currently supports only nss == MAX_HE_SUPP_NSS 2046 * 2047 * If nss > MAX: we can ignore values we don't support 2048 * If nss < MAX: we can set zeros in other streams 2049 */ 2050 if (nss > MAX_HE_SUPP_NSS) { 2051 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2052 MAX_HE_SUPP_NSS); 2053 nss = MAX_HE_SUPP_NSS; 2054 } 2055 2056 for (i = 0; i < nss; i++) { 2057 u8 ru_index_tmp = ru_index_bitmap << 1; 2058 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 2059 u8 bw; 2060 2061 for (bw = 0; 2062 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2063 bw++) { 2064 ru_index_tmp >>= 1; 2065 2066 /* 2067 * According to the 11be spec, if for a specific BW the PPE Thresholds 2068 * isn't present - it should inherit the thresholds from the last 2069 * BW for which we had PPE Thresholds. In 11ax though, we don't have 2070 * this inheritance - continue in this case 2071 */ 2072 if (!(ru_index_tmp & 1)) { 2073 if (inheritance) 2074 goto set_thresholds; 2075 else 2076 continue; 2077 } 2078 2079 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2080 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2081 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2082 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2083 2084set_thresholds: 2085 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2086 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2087 } 2088 } 2089} 2090 2091static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 2092 struct ieee80211_link_sta *link_sta, 2093 struct iwl_he_pkt_ext_v2 *pkt_ext, 2094 bool inheritance) 2095{ 2096 u8 nss = (link_sta->he_cap.ppe_thres[0] & 2097 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2098 u8 *ppe = &link_sta->he_cap.ppe_thres[0]; 2099 u8 ru_index_bitmap = 2100 u8_get_bits(*ppe, 2101 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 2102 /* Starting after PPE header */ 2103 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 2104 2105 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit, 2106 inheritance); 2107} 2108 2109static int 2110iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 2111 u8 nominal_padding) 2112{ 2113 int low_th = -1; 2114 int high_th = -1; 2115 int i; 2116 2117 /* all the macros are the same for EHT and HE */ 2118 switch (nominal_padding) { 2119 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 2120 low_th = IWL_HE_PKT_EXT_NONE; 2121 high_th = IWL_HE_PKT_EXT_NONE; 2122 break; 2123 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 2124 low_th = IWL_HE_PKT_EXT_BPSK; 2125 high_th = IWL_HE_PKT_EXT_NONE; 2126 break; 2127 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 2128 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 2129 low_th = IWL_HE_PKT_EXT_NONE; 2130 high_th = IWL_HE_PKT_EXT_BPSK; 2131 break; 2132 } 2133 2134 if (low_th < 0 || high_th < 0) 2135 return -EINVAL; 2136 2137 /* Set the PPE thresholds accordingly */ 2138 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2139 u8 bw; 2140 2141 for (bw = 0; 2142 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2143 bw++) { 2144 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2145 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2146 } 2147 } 2148 2149 return 0; 2150} 2151 2152static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext, 2153 u8 nominal_padding) 2154{ 2155 int i; 2156 2157 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2158 u8 bw; 2159 2160 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2161 bw++) { 2162 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2163 2164 if (nominal_padding > 2165 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2166 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2167 qam_th[1] = IWL_HE_PKT_EXT_4096QAM; 2168 else if (nominal_padding == 2169 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2170 qam_th[0] == IWL_HE_PKT_EXT_NONE && 2171 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2172 qam_th[0] = IWL_HE_PKT_EXT_4096QAM; 2173 } 2174 } 2175} 2176 2177/* Set the pkt_ext field according to PPE Thresholds element */ 2178int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm, 2179 struct ieee80211_link_sta *link_sta, 2180 struct iwl_he_pkt_ext_v2 *pkt_ext) 2181{ 2182 u8 nominal_padding; 2183 int i, ret = 0; 2184 2185 if (WARN_ON(!link_sta)) 2186 return -EINVAL; 2187 2188 /* Initialize the PPE thresholds to "None" (7), as described in Table 2189 * 9-262ac of 80211.ax/D3.0. 2190 */ 2191 memset(pkt_ext, IWL_HE_PKT_EXT_NONE, 2192 sizeof(struct iwl_he_pkt_ext_v2)); 2193 2194 if (link_sta->eht_cap.has_eht) { 2195 nominal_padding = 2196 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5], 2197 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK); 2198 2199 /* If PPE Thresholds exists, parse them into a FW-familiar 2200 * format. 2201 */ 2202 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] & 2203 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 2204 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] & 2205 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1; 2206 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0]; 2207 u8 ru_index_bitmap = 2208 u16_get_bits(*ppe, 2209 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK); 2210 /* Starting after PPE header */ 2211 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE; 2212 2213 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, 2214 ppe, ppe_pos_bit, true); 2215 /* EHT PPE Thresholds doesn't exist - set the API according to 2216 * HE PPE Tresholds 2217 */ 2218 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2219 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2220 /* Even though HE Capabilities IE doesn't contain PPE 2221 * Thresholds for BW 320Mhz, thresholds for this BW will 2222 * be filled in with the same values as 160Mhz, due to 2223 * the inheritance, as required. 2224 */ 2225 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2226 true); 2227 2228 /* According to the requirements, for MCSs 12-13 the 2229 * maximum value between HE PPE Threshold and Common 2230 * Nominal Packet Padding needs to be taken 2231 */ 2232 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding); 2233 2234 /* if PPE Thresholds doesn't present in both EHT IE and HE IE - 2235 * take the Thresholds from Common Nominal Packet Padding field 2236 */ 2237 } else { 2238 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2239 nominal_padding); 2240 } 2241 } else if (link_sta->he_cap.has_he) { 2242 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2243 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2244 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2245 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2246 false); 2247 /* PPE Thresholds doesn't exist - set the API PPE values 2248 * according to Common Nominal Packet Padding field. 2249 */ 2250 } else { 2251 nominal_padding = 2252 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9], 2253 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2254 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2255 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2256 nominal_padding); 2257 } 2258 } 2259 2260 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2261 int bw; 2262 2263 for (bw = 0; 2264 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]); 2265 bw++) { 2266 u8 *qam_th = 2267 &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2268 2269 IWL_DEBUG_HT(mvm, 2270 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n", 2271 i, bw, qam_th[0], qam_th[1]); 2272 } 2273 } 2274 return ret; 2275} 2276 2277/* 2278 * This function sets the MU EDCA parameters ans returns whether MU EDCA 2279 * is enabled or not 2280 */ 2281bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm, 2282 const struct iwl_mvm_vif_link_info *link_info, 2283 struct iwl_he_backoff_conf *trig_based_txf) 2284{ 2285 int i; 2286 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2287 bool mu_edca_enabled = true; 2288 2289 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2290 const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2291 &link_info->queue_params[i].mu_edca_param_rec; 2292 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2293 2294 if (!link_info->queue_params[i].mu_edca) { 2295 mu_edca_enabled = false; 2296 break; 2297 } 2298 2299 trig_based_txf[ac].cwmin = 2300 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2301 trig_based_txf[ac].cwmax = 2302 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2303 trig_based_txf[ac].aifsn = 2304 cpu_to_le16(mu_edca->aifsn & 0xf); 2305 trig_based_txf[ac].mu_time = 2306 cpu_to_le16(mu_edca->mu_edca_timer); 2307 } 2308 2309 return mu_edca_enabled; 2310} 2311 2312bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2313{ 2314 const struct ieee80211_supported_band *sband; 2315 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 2316 2317 /* This capability is the same for all bands, 2318 * so take it from one of them. 2319 */ 2320 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 2321 own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 2322 2323 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] & 2324 IEEE80211_HE_MAC_CAP2_ACK_EN)); 2325} 2326 2327__le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta, 2328 struct ieee80211_link_sta *link_sta) 2329{ 2330 u8 *mac_cap_info = 2331 &link_sta->he_cap.he_cap_elem.mac_cap_info[0]; 2332 __le32 htc_flags = 0; 2333 2334 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) 2335 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2336 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2337 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2338 u8 link_adap = 2339 ((mac_cap_info[2] & 2340 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2341 (mac_cap_info[1] & 2342 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2343 2344 if (link_adap == 2) 2345 htc_flags |= 2346 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2347 else if (link_adap == 3) 2348 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2349 } 2350 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2351 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2352 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2353 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2354 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2355 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2356 2357 return htc_flags; 2358} 2359 2360static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2361 struct ieee80211_vif *vif, u8 sta_id) 2362{ 2363 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2364 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 2365 .sta_id = sta_id, 2366 .tid_limit = IWL_MAX_TID_COUNT, 2367 .bss_color = vif->bss_conf.he_bss_color.color, 2368 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2369 .frame_time_rts_th = 2370 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2371 }; 2372 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 2373 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 2374 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 2375 int size; 2376 struct ieee80211_sta *sta; 2377 u32 flags; 2378 int i; 2379 void *cmd; 2380 2381 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 2382 ver = 1; 2383 2384 switch (ver) { 2385 case 1: 2386 /* same layout as v2 except some data at the end */ 2387 cmd = &sta_ctxt_cmd_v2; 2388 size = sizeof(struct iwl_he_sta_context_cmd_v1); 2389 break; 2390 case 2: 2391 cmd = &sta_ctxt_cmd_v2; 2392 size = sizeof(struct iwl_he_sta_context_cmd_v2); 2393 break; 2394 case 3: 2395 cmd = &sta_ctxt_cmd; 2396 size = sizeof(struct iwl_he_sta_context_cmd_v3); 2397 break; 2398 default: 2399 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 2400 return; 2401 } 2402 2403 rcu_read_lock(); 2404 2405 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2406 if (IS_ERR_OR_NULL(sta)) { 2407 rcu_read_unlock(); 2408 WARN(1, "Can't find STA to configure HE\n"); 2409 return; 2410 } 2411 2412 if (!sta->deflink.he_cap.has_he) { 2413 rcu_read_unlock(); 2414 return; 2415 } 2416 2417 flags = 0; 2418 2419 /* Block 26-tone RU OFDMA transmissions */ 2420 if (mvmvif->deflink.he_ru_2mhz_block) 2421 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2422 2423 /* HTC flags */ 2424 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink); 2425 2426 /* PPE Thresholds */ 2427 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext)) 2428 flags |= STA_CTXT_HE_PACKET_EXT; 2429 2430 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2431 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2432 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2433 2434 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2435 IEEE80211_HE_MAC_CAP2_ACK_EN) 2436 flags |= STA_CTXT_HE_ACK_ENABLED; 2437 2438 rcu_read_unlock(); 2439 2440 if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink, 2441 &sta_ctxt_cmd.trig_based_txf[0])) 2442 flags |= STA_CTXT_HE_MU_EDCA_CW; 2443 2444 if (vif->bss_conf.uora_exists) { 2445 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2446 2447 sta_ctxt_cmd.rand_alloc_ecwmin = 2448 vif->bss_conf.uora_ocw_range & 0x7; 2449 sta_ctxt_cmd.rand_alloc_ecwmax = 2450 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2451 } 2452 2453 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif)) 2454 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2455 2456 if (vif->bss_conf.nontransmitted) { 2457 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2458 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2459 vif->bss_conf.transmitter_bssid); 2460 sta_ctxt_cmd.max_bssid_indicator = 2461 vif->bss_conf.bssid_indicator; 2462 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2463 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2464 sta_ctxt_cmd.profile_periodicity = 2465 vif->bss_conf.profile_periodicity; 2466 } 2467 2468 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2469 2470 if (ver < 3) { 2471 /* fields before pkt_ext */ 2472 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2473 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2474 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2475 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2476 2477 /* pkt_ext */ 2478 for (i = 0; 2479 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2480 i++) { 2481 u8 bw; 2482 2483 for (bw = 0; 2484 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2485 bw++) { 2486 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2487 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2488 2489 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2490 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2491 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2492 } 2493 } 2494 2495 /* fields after pkt_ext */ 2496 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2497 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2498 sizeof(sta_ctxt_cmd_v2) - 2499 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2500 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2501 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2502 (u8 *)&sta_ctxt_cmd + 2503 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2504 sizeof(sta_ctxt_cmd) - 2505 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2506 sta_ctxt_cmd_v2.reserved3 = 0; 2507 } 2508 2509 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2510 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2511} 2512 2513void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2514 u32 duration_override, unsigned int link_id) 2515{ 2516 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2517 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2518 2519 if (duration_override > duration) 2520 duration = duration_override; 2521 2522 /* Try really hard to protect the session and hear a beacon 2523 * The new session protection command allows us to protect the 2524 * session for a much longer time since the firmware will internally 2525 * create two events: a 300TU one with a very high priority that 2526 * won't be fragmented which should be enough for 99% of the cases, 2527 * and another one (which we configure here to be 900TU long) which 2528 * will have a slightly lower priority, but more importantly, can be 2529 * fragmented so that it'll allow other activities to run. 2530 */ 2531 if (fw_has_capa(&mvm->fw->ucode_capa, 2532 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2533 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2534 min_duration, false, 2535 link_id); 2536 else 2537 iwl_mvm_protect_session(mvm, vif, duration, 2538 min_duration, 500, false); 2539} 2540 2541/* Handle association common part to MLD and non-MLD modes */ 2542void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm, 2543 struct ieee80211_vif *vif, 2544 u64 changes) 2545{ 2546 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2547 int ret; 2548 2549 /* The firmware tracks the MU-MIMO group on its own. 2550 * However, on HW restart we should restore this data. 2551 */ 2552 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2553 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) { 2554 ret = iwl_mvm_update_mu_groups(mvm, vif); 2555 if (ret) 2556 IWL_ERR(mvm, 2557 "failed to update VHT MU_MIMO groups\n"); 2558 } 2559 2560 iwl_mvm_recalc_multicast(mvm); 2561 2562 /* reset rssi values */ 2563 mvmvif->bf_data.ave_beacon_signal = 0; 2564 2565 iwl_mvm_bt_coex_vif_change(mvm); 2566 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2567 IEEE80211_SMPS_AUTOMATIC); 2568 if (fw_has_capa(&mvm->fw->ucode_capa, 2569 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2570 iwl_mvm_config_scan(mvm); 2571} 2572 2573/* Execute the common part for MLD and non-MLD modes */ 2574void 2575iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm, 2576 struct ieee80211_vif *vif, 2577 struct ieee80211_bss_conf *link_conf, 2578 u64 changes) 2579{ 2580 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2581 int ret; 2582 2583 if (changes & BSS_CHANGED_BEACON_INFO) { 2584 /* We received a beacon from the associated AP so 2585 * remove the session protection. 2586 */ 2587 iwl_mvm_stop_session_protection(mvm, vif); 2588 2589 iwl_mvm_sf_update(mvm, vif, false); 2590 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); 2591 } 2592 2593 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2594 /* Send power command on every beacon change, 2595 * because we may have not enabled beacon abort yet. 2596 */ 2597 BSS_CHANGED_BEACON_INFO)) { 2598 ret = iwl_mvm_power_update_mac(mvm); 2599 if (ret) 2600 IWL_ERR(mvm, "failed to update power mode\n"); 2601 } 2602 2603 if (changes & BSS_CHANGED_CQM) { 2604 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 2605 /* reset cqm events tracking */ 2606 mvmvif->bf_data.last_cqm_event = 0; 2607 if (mvmvif->bf_data.bf_enabled) { 2608 /* FIXME: need to update per link when FW API will 2609 * support it 2610 */ 2611 ret = iwl_mvm_enable_beacon_filter(mvm, vif); 2612 if (ret) 2613 IWL_ERR(mvm, 2614 "failed to update CQM thresholds\n"); 2615 } 2616 } 2617 2618 if (changes & BSS_CHANGED_BANDWIDTH) 2619 iwl_mvm_update_link_smps(vif, link_conf); 2620} 2621 2622static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2623 struct ieee80211_vif *vif, 2624 struct ieee80211_bss_conf *bss_conf, 2625 u64 changes) 2626{ 2627 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2628 int ret; 2629 int i; 2630 2631 /* 2632 * Re-calculate the tsf id, as the leader-follower relations depend 2633 * on the beacon interval, which was not known when the station 2634 * interface was added. 2635 */ 2636 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) { 2637 if ((vif->bss_conf.he_support && 2638 !iwlwifi_mod_params.disable_11ax)) 2639 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2640 2641 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2642 } 2643 2644 /* Update MU EDCA params */ 2645 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2646 vif->cfg.assoc && 2647 (vif->bss_conf.he_support && !iwlwifi_mod_params.disable_11ax)) 2648 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2649 2650 /* 2651 * If we're not associated yet, take the (new) BSSID before associating 2652 * so the firmware knows. If we're already associated, then use the old 2653 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2654 * branch for disassociation below. 2655 */ 2656 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2657 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2658 2659 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid); 2660 if (ret) 2661 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2662 2663 /* after sending it once, adopt mac80211 data */ 2664 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2665 mvmvif->associated = vif->cfg.assoc; 2666 2667 if (changes & BSS_CHANGED_ASSOC) { 2668 if (vif->cfg.assoc) { 2669 /* clear statistics to get clean beacon counter */ 2670 iwl_mvm_request_statistics(mvm, true); 2671 for_each_mvm_vif_valid_link(mvmvif, i) 2672 memset(&mvmvif->link[i]->beacon_stats, 0, 2673 sizeof(mvmvif->link[i]->beacon_stats)); 2674 2675 /* add quota for this interface */ 2676 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2677 if (ret) { 2678 IWL_ERR(mvm, "failed to update quotas\n"); 2679 return; 2680 } 2681 2682 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2683 &mvm->status) && 2684 !fw_has_capa(&mvm->fw->ucode_capa, 2685 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2686 /* 2687 * If we're restarting then the firmware will 2688 * obviously have lost synchronisation with 2689 * the AP. It will attempt to synchronise by 2690 * itself, but we can make it more reliable by 2691 * scheduling a session protection time event. 2692 * 2693 * The firmware needs to receive a beacon to 2694 * catch up with synchronisation, use 110% of 2695 * the beacon interval. 2696 * 2697 * Set a large maximum delay to allow for more 2698 * than a single interface. 2699 * 2700 * For new firmware versions, rely on the 2701 * firmware. This is relevant for DCM scenarios 2702 * only anyway. 2703 */ 2704 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2705 iwl_mvm_protect_session(mvm, vif, dur, dur, 2706 5 * dur, false); 2707 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2708 &mvm->status) && 2709 !vif->bss_conf.dtim_period) { 2710 /* 2711 * If we're not restarting and still haven't 2712 * heard a beacon (dtim period unknown) then 2713 * make sure we still have enough minimum time 2714 * remaining in the time event, since the auth 2715 * might actually have taken quite a while 2716 * (especially for SAE) and so the remaining 2717 * time could be small without us having heard 2718 * a beacon yet. 2719 */ 2720 iwl_mvm_protect_assoc(mvm, vif, 0, 0); 2721 } 2722 2723 iwl_mvm_sf_update(mvm, vif, false); 2724 iwl_mvm_power_vif_assoc(mvm, vif); 2725 if (vif->p2p) { 2726 iwl_mvm_update_smps(mvm, vif, 2727 IWL_MVM_SMPS_REQ_PROT, 2728 IEEE80211_SMPS_DYNAMIC, 0); 2729 } 2730 } else if (mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) { 2731 iwl_mvm_mei_host_disassociated(mvm); 2732 /* 2733 * If update fails - SF might be running in associated 2734 * mode while disassociated - which is forbidden. 2735 */ 2736 ret = iwl_mvm_sf_update(mvm, vif, false); 2737 WARN_ONCE(ret && 2738 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2739 &mvm->status), 2740 "Failed to update SF upon disassociation\n"); 2741 2742 /* 2743 * If we get an assert during the connection (after the 2744 * station has been added, but before the vif is set 2745 * to associated), mac80211 will re-add the station and 2746 * then configure the vif. Since the vif is not 2747 * associated, we would remove the station here and 2748 * this would fail the recovery. 2749 */ 2750 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2751 &mvm->status)) { 2752 /* first remove remaining keys */ 2753 iwl_mvm_sec_key_remove_ap(mvm, vif, 2754 &mvmvif->deflink, 0); 2755 2756 /* 2757 * Remove AP station now that 2758 * the MAC is unassoc 2759 */ 2760 ret = iwl_mvm_rm_sta_id(mvm, vif, 2761 mvmvif->deflink.ap_sta_id); 2762 if (ret) 2763 IWL_ERR(mvm, 2764 "failed to remove AP station\n"); 2765 2766 mvmvif->deflink.ap_sta_id = IWL_MVM_INVALID_STA; 2767 } 2768 2769 /* remove quota for this interface */ 2770 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2771 if (ret) 2772 IWL_ERR(mvm, "failed to update quotas\n"); 2773 2774 /* this will take the cleared BSSID from bss_conf */ 2775 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2776 if (ret) 2777 IWL_ERR(mvm, 2778 "failed to update MAC %pM (clear after unassoc)\n", 2779 vif->addr); 2780 } 2781 2782 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes); 2783 } 2784 2785 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf, 2786 changes); 2787} 2788 2789bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw, 2790 struct ieee80211_vif *vif, 2791 int *ret) 2792{ 2793 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2794 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2795 int i; 2796 2797 lockdep_assert_held(&mvm->mutex); 2798 2799 mvmvif->ap_assoc_sta_count = 0; 2800 2801 /* must be set before quota calculations */ 2802 mvmvif->ap_ibss_active = true; 2803 2804 /* send all the early keys to the device now */ 2805 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2806 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2807 2808 if (!key) 2809 continue; 2810 2811 mvmvif->ap_early_keys[i] = NULL; 2812 2813 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2814 if (*ret) 2815 return true; 2816 } 2817 2818 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2819 iwl_mvm_vif_set_low_latency(mvmvif, true, 2820 LOW_LATENCY_VIF_TYPE); 2821 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 2822 } 2823 2824 /* power updated needs to be done before quotas */ 2825 iwl_mvm_power_update_mac(mvm); 2826 2827 return false; 2828} 2829 2830static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2831 struct ieee80211_vif *vif, 2832 struct ieee80211_bss_conf *link_conf) 2833{ 2834 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2835 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2836 int ret; 2837 2838 mutex_lock(&mvm->mutex); 2839 2840 /* 2841 * Re-calculate the tsf id, as the leader-follower relations depend on 2842 * the beacon interval, which was not known when the AP interface 2843 * was added. 2844 */ 2845 if (vif->type == NL80211_IFTYPE_AP) 2846 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2847 2848 /* For older devices need to send beacon template before adding mac 2849 * context. For the newer, the beacon is a resource that belongs to a 2850 * MAC, so need to send beacon template after adding the mac. 2851 */ 2852 if (mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_22000) { 2853 /* Add the mac context */ 2854 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2855 if (ret) 2856 goto out_unlock; 2857 2858 /* Send the beacon template */ 2859 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2860 if (ret) 2861 goto out_unlock; 2862 } else { 2863 /* Send the beacon template */ 2864 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2865 if (ret) 2866 goto out_unlock; 2867 2868 /* Add the mac context */ 2869 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2870 if (ret) 2871 goto out_unlock; 2872 } 2873 2874 /* Perform the binding */ 2875 ret = iwl_mvm_binding_add_vif(mvm, vif); 2876 if (ret) 2877 goto out_remove; 2878 2879 /* 2880 * This is not very nice, but the simplest: 2881 * For older FWs adding the mcast sta before the bcast station may 2882 * cause assert 0x2b00. 2883 * This is fixed in later FW so make the order of removal depend on 2884 * the TLV 2885 */ 2886 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2887 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2888 if (ret) 2889 goto out_unbind; 2890 /* 2891 * Send the bcast station. At this stage the TBTT and DTIM time 2892 * events are added and applied to the scheduler 2893 */ 2894 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2895 if (ret) { 2896 iwl_mvm_rm_mcast_sta(mvm, vif); 2897 goto out_unbind; 2898 } 2899 } else { 2900 /* 2901 * Send the bcast station. At this stage the TBTT and DTIM time 2902 * events are added and applied to the scheduler 2903 */ 2904 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2905 if (ret) 2906 goto out_unbind; 2907 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2908 if (ret) { 2909 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2910 goto out_unbind; 2911 } 2912 } 2913 2914 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret)) 2915 goto out_failed; 2916 2917 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2918 if (ret) 2919 goto out_failed; 2920 2921 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2922 if (vif->p2p && mvm->p2p_device_vif) 2923 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2924 2925 iwl_mvm_bt_coex_vif_change(mvm); 2926 2927 /* we don't support TDLS during DCM */ 2928 if (iwl_mvm_phy_ctx_count(mvm) > 1) 2929 iwl_mvm_teardown_tdls_peers(mvm); 2930 2931 iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf); 2932 2933 goto out_unlock; 2934 2935out_failed: 2936 iwl_mvm_power_update_mac(mvm); 2937 mvmvif->ap_ibss_active = false; 2938 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2939 iwl_mvm_rm_mcast_sta(mvm, vif); 2940out_unbind: 2941 iwl_mvm_binding_remove_vif(mvm, vif); 2942out_remove: 2943 iwl_mvm_mac_ctxt_remove(mvm, vif); 2944out_unlock: 2945 mutex_unlock(&mvm->mutex); 2946 return ret; 2947} 2948 2949static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 2950 struct ieee80211_vif *vif, 2951 struct ieee80211_bss_conf *link_conf) 2952{ 2953 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 2954} 2955 2956static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 2957 struct ieee80211_vif *vif) 2958{ 2959 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 2960} 2961 2962/* Common part for MLD and non-MLD ops */ 2963void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm, 2964 struct ieee80211_vif *vif) 2965{ 2966 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2967 2968 lockdep_assert_held(&mvm->mutex); 2969 2970 iwl_mvm_prepare_mac_removal(mvm, vif); 2971 2972 /* Handle AP stop while in CSA */ 2973 if (rcu_access_pointer(mvm->csa_vif) == vif) { 2974 iwl_mvm_remove_time_event(mvm, mvmvif, 2975 &mvmvif->time_event_data); 2976 RCU_INIT_POINTER(mvm->csa_vif, NULL); 2977 mvmvif->csa_countdown = false; 2978 } 2979 2980 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2981 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2982 mvm->csa_tx_block_bcn_timeout = 0; 2983 } 2984 2985 mvmvif->ap_ibss_active = false; 2986 mvm->ap_last_beacon_gp2 = 0; 2987 2988 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2989 iwl_mvm_vif_set_low_latency(mvmvif, false, 2990 LOW_LATENCY_VIF_TYPE); 2991 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 2992 } 2993 2994 iwl_mvm_bt_coex_vif_change(mvm); 2995} 2996 2997static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2998 struct ieee80211_vif *vif, 2999 struct ieee80211_bss_conf *link_conf) 3000{ 3001 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3002 3003 mutex_lock(&mvm->mutex); 3004 3005 iwl_mvm_stop_ap_ibss_common(mvm, vif); 3006 3007 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 3008 if (vif->p2p && mvm->p2p_device_vif) 3009 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 3010 3011 iwl_mvm_update_quotas(mvm, false, NULL); 3012 3013 iwl_mvm_ftm_responder_clear(mvm, vif); 3014 3015 /* 3016 * This is not very nice, but the simplest: 3017 * For older FWs removing the mcast sta before the bcast station may 3018 * cause assert 0x2b00. 3019 * This is fixed in later FW (which will stop beaconing when removing 3020 * bcast station). 3021 * So make the order of removal depend on the TLV 3022 */ 3023 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3024 iwl_mvm_rm_mcast_sta(mvm, vif); 3025 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3026 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3027 iwl_mvm_rm_mcast_sta(mvm, vif); 3028 iwl_mvm_binding_remove_vif(mvm, vif); 3029 3030 iwl_mvm_power_update_mac(mvm); 3031 3032 iwl_mvm_mac_ctxt_remove(mvm, vif); 3033 3034 mutex_unlock(&mvm->mutex); 3035} 3036 3037static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 3038 struct ieee80211_vif *vif, 3039 struct ieee80211_bss_conf *link_conf) 3040{ 3041 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 3042} 3043 3044static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 3045 struct ieee80211_vif *vif) 3046{ 3047 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 3048} 3049 3050static void 3051iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 3052 struct ieee80211_vif *vif, 3053 struct ieee80211_bss_conf *bss_conf, 3054 u64 changes) 3055{ 3056 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3057 3058 /* Changes will be applied when the AP/IBSS is started */ 3059 if (!mvmvif->ap_ibss_active) 3060 return; 3061 3062 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 3063 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 3064 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 3065 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 3066 3067 /* Need to send a new beacon template to the FW */ 3068 if (changes & BSS_CHANGED_BEACON && 3069 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf)) 3070 IWL_WARN(mvm, "Failed updating beacon data\n"); 3071 3072 if (changes & BSS_CHANGED_FTM_RESPONDER) { 3073 int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf); 3074 3075 if (ret) 3076 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 3077 ret); 3078 } 3079 3080} 3081 3082static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 3083 struct ieee80211_vif *vif, 3084 struct ieee80211_bss_conf *bss_conf, 3085 u64 changes) 3086{ 3087 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3088 3089 mutex_lock(&mvm->mutex); 3090 3091 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle) 3092 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 3093 3094 switch (vif->type) { 3095 case NL80211_IFTYPE_STATION: 3096 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 3097 break; 3098 case NL80211_IFTYPE_AP: 3099 case NL80211_IFTYPE_ADHOC: 3100 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 3101 break; 3102 case NL80211_IFTYPE_MONITOR: 3103 if (changes & BSS_CHANGED_MU_GROUPS) 3104 iwl_mvm_update_mu_groups(mvm, vif); 3105 break; 3106 default: 3107 /* shouldn't happen */ 3108 WARN_ON_ONCE(1); 3109 } 3110 3111 if (changes & BSS_CHANGED_TXPOWER) { 3112 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 3113 bss_conf->txpower); 3114 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 3115 } 3116 3117 mutex_unlock(&mvm->mutex); 3118} 3119 3120int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3121 struct ieee80211_scan_request *hw_req) 3122{ 3123 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3124 int ret; 3125 3126 if (hw_req->req.n_channels == 0 || 3127 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 3128 return -EINVAL; 3129 3130 mutex_lock(&mvm->mutex); 3131 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 3132 mutex_unlock(&mvm->mutex); 3133 3134 return ret; 3135} 3136 3137void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 3138 struct ieee80211_vif *vif) 3139{ 3140 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3141 3142 mutex_lock(&mvm->mutex); 3143 3144 /* Due to a race condition, it's possible that mac80211 asks 3145 * us to stop a hw_scan when it's already stopped. This can 3146 * happen, for instance, if we stopped the scan ourselves, 3147 * called ieee80211_scan_completed() and the userspace called 3148 * cancel scan scan before ieee80211_scan_work() could run. 3149 * To handle that, simply return if the scan is not running. 3150 */ 3151 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 3152 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 3153 3154 mutex_unlock(&mvm->mutex); 3155} 3156 3157void 3158iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 3159 struct ieee80211_sta *sta, u16 tids, 3160 int num_frames, 3161 enum ieee80211_frame_release_type reason, 3162 bool more_data) 3163{ 3164 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3165 3166 /* Called when we need to transmit (a) frame(s) from mac80211 */ 3167 3168 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3169 tids, more_data, false); 3170} 3171 3172void 3173iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 3174 struct ieee80211_sta *sta, u16 tids, 3175 int num_frames, 3176 enum ieee80211_frame_release_type reason, 3177 bool more_data) 3178{ 3179 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3180 3181 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 3182 3183 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3184 tids, more_data, true); 3185} 3186 3187static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 3188 enum sta_notify_cmd cmd, 3189 struct ieee80211_sta *sta) 3190{ 3191 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3192 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3193 unsigned long txqs = 0, tids = 0; 3194 int tid; 3195 3196 /* 3197 * If we have TVQM then we get too high queue numbers - luckily 3198 * we really shouldn't get here with that because such hardware 3199 * should have firmware supporting buffer station offload. 3200 */ 3201 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 3202 return; 3203 3204 spin_lock_bh(&mvmsta->lock); 3205 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 3206 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3207 3208 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 3209 continue; 3210 3211 __set_bit(tid_data->txq_id, &txqs); 3212 3213 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 3214 continue; 3215 3216 __set_bit(tid, &tids); 3217 } 3218 3219 switch (cmd) { 3220 case STA_NOTIFY_SLEEP: 3221 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 3222 ieee80211_sta_set_buffered(sta, tid, true); 3223 3224 if (txqs) 3225 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 3226 /* 3227 * The fw updates the STA to be asleep. Tx packets on the Tx 3228 * queues to this station will not be transmitted. The fw will 3229 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 3230 */ 3231 break; 3232 case STA_NOTIFY_AWAKE: 3233 if (WARN_ON(mvmsta->deflink.sta_id == IWL_MVM_INVALID_STA)) 3234 break; 3235 3236 if (txqs) 3237 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 3238 iwl_mvm_sta_modify_ps_wake(mvm, sta); 3239 break; 3240 default: 3241 break; 3242 } 3243 spin_unlock_bh(&mvmsta->lock); 3244} 3245 3246void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3247 enum sta_notify_cmd cmd, struct ieee80211_sta *sta) 3248{ 3249 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 3250} 3251 3252void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 3253{ 3254 struct iwl_rx_packet *pkt = rxb_addr(rxb); 3255 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 3256 struct ieee80211_sta *sta; 3257 struct iwl_mvm_sta *mvmsta; 3258 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 3259 3260 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 3261 return; 3262 3263 rcu_read_lock(); 3264 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 3265 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 3266 rcu_read_unlock(); 3267 return; 3268 } 3269 3270 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3271 3272 if (!mvmsta->vif || 3273 mvmsta->vif->type != NL80211_IFTYPE_AP) { 3274 rcu_read_unlock(); 3275 return; 3276 } 3277 3278 if (mvmsta->sleeping != sleeping) { 3279 mvmsta->sleeping = sleeping; 3280 __iwl_mvm_mac_sta_notify(mvm->hw, 3281 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 3282 sta); 3283 ieee80211_sta_ps_transition(sta, sleeping); 3284 } 3285 3286 if (sleeping) { 3287 switch (notif->type) { 3288 case IWL_MVM_PM_EVENT_AWAKE: 3289 case IWL_MVM_PM_EVENT_ASLEEP: 3290 break; 3291 case IWL_MVM_PM_EVENT_UAPSD: 3292 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 3293 break; 3294 case IWL_MVM_PM_EVENT_PS_POLL: 3295 ieee80211_sta_pspoll(sta); 3296 break; 3297 default: 3298 break; 3299 } 3300 } 3301 3302 rcu_read_unlock(); 3303} 3304 3305void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 3306 struct ieee80211_vif *vif, 3307 struct ieee80211_sta *sta) 3308{ 3309 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3310 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3311 unsigned int link_id; 3312 3313 /* 3314 * This is called before mac80211 does RCU synchronisation, 3315 * so here we already invalidate our internal RCU-protected 3316 * station pointer. The rest of the code will thus no longer 3317 * be able to find the station this way, and we don't rely 3318 * on further RCU synchronisation after the sta_state() 3319 * callback deleted the station. 3320 * Since there's mvm->mutex here, no need to have RCU lock for 3321 * mvm_sta->link access. 3322 */ 3323 mutex_lock(&mvm->mutex); 3324 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) { 3325 struct iwl_mvm_link_sta *link_sta; 3326 u32 sta_id; 3327 3328 if (!mvm_sta->link[link_id]) 3329 continue; 3330 3331 link_sta = rcu_dereference_protected(mvm_sta->link[link_id], 3332 lockdep_is_held(&mvm->mutex)); 3333 sta_id = link_sta->sta_id; 3334 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) { 3335 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], 3336 ERR_PTR(-ENOENT)); 3337 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL); 3338 } 3339 } 3340 mutex_unlock(&mvm->mutex); 3341} 3342 3343static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3344 const u8 *bssid) 3345{ 3346 int i; 3347 3348 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3349 struct iwl_mvm_tcm_mac *mdata; 3350 3351 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3352 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3353 mdata->opened_rx_ba_sessions = false; 3354 } 3355 3356 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3357 return; 3358 3359 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3360 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3361 return; 3362 } 3363 3364 if (!vif->p2p && 3365 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3366 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3367 return; 3368 } 3369 3370 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3371 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3372 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3373 return; 3374 } 3375 } 3376 3377 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3378} 3379 3380static void 3381iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3382 struct ieee80211_vif *vif, u8 *peer_addr, 3383 enum nl80211_tdls_operation action) 3384{ 3385 struct iwl_fw_dbg_trigger_tlv *trig; 3386 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3387 3388 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3389 FW_DBG_TRIGGER_TDLS); 3390 if (!trig) 3391 return; 3392 3393 tdls_trig = (void *)trig->data; 3394 3395 if (!(tdls_trig->action_bitmap & BIT(action))) 3396 return; 3397 3398 if (tdls_trig->peer_mode && 3399 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3400 return; 3401 3402 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3403 "TDLS event occurred, peer %pM, action %d", 3404 peer_addr, action); 3405} 3406 3407struct iwl_mvm_he_obss_narrow_bw_ru_data { 3408 bool tolerated; 3409}; 3410 3411static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3412 struct cfg80211_bss *bss, 3413 void *_data) 3414{ 3415 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3416 const struct cfg80211_bss_ies *ies; 3417 const struct element *elem; 3418 3419 rcu_read_lock(); 3420 ies = rcu_dereference(bss->ies); 3421 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3422 ies->len); 3423 3424 if (!elem || elem->datalen < 10 || 3425 !(elem->data[10] & 3426 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3427 data->tolerated = false; 3428 } 3429 rcu_read_unlock(); 3430} 3431 3432static void 3433iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3434 struct ieee80211_vif *vif, 3435 unsigned int link_id, 3436 struct ieee80211_bss_conf *link_conf) 3437{ 3438 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3439 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3440 .tolerated = true, 3441 }; 3442 3443 if (WARN_ON_ONCE(!link_conf->chanreq.oper.chan || 3444 !mvmvif->link[link_id])) 3445 return; 3446 3447 if (!(link_conf->chanreq.oper.chan->flags & IEEE80211_CHAN_RADAR)) { 3448 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3449 return; 3450 } 3451 3452 cfg80211_bss_iter(hw->wiphy, &link_conf->chanreq.oper, 3453 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3454 &iter_data); 3455 3456 /* 3457 * If there is at least one AP on radar channel that cannot 3458 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3459 */ 3460 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated; 3461} 3462 3463static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3464 struct ieee80211_vif *vif) 3465{ 3466 struct ieee80211_supported_band *sband; 3467 const struct ieee80211_sta_he_cap *he_cap; 3468 3469 if (vif->type != NL80211_IFTYPE_STATION) 3470 return; 3471 3472 if (!mvm->cca_40mhz_workaround) 3473 return; 3474 3475 /* decrement and check that we reached zero */ 3476 mvm->cca_40mhz_workaround--; 3477 if (mvm->cca_40mhz_workaround) 3478 return; 3479 3480 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3481 3482 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3483 3484 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 3485 3486 if (he_cap) { 3487 /* we know that ours is writable */ 3488 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3489 3490 he->he_cap_elem.phy_cap_info[0] |= 3491 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3492 } 3493} 3494 3495static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3496 struct ieee80211_vif *vif, 3497 struct iwl_mvm_sta *mvm_sta) 3498{ 3499#if IS_ENABLED(CONFIG_IWLMEI) 3500 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3501 struct iwl_mei_conn_info conn_info = { 3502 .ssid_len = vif->cfg.ssid_len, 3503 }; 3504 3505 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3506 return; 3507 3508 if (!mvm->mei_registered) 3509 return; 3510 3511 /* FIXME: MEI needs to be updated for MLO */ 3512 if (!vif->bss_conf.chanreq.oper.chan) 3513 return; 3514 3515 conn_info.channel = vif->bss_conf.chanreq.oper.chan->hw_value; 3516 3517 switch (mvm_sta->pairwise_cipher) { 3518 case WLAN_CIPHER_SUITE_TKIP: 3519 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP; 3520 break; 3521 case WLAN_CIPHER_SUITE_CCMP: 3522 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3523 break; 3524 case WLAN_CIPHER_SUITE_GCMP: 3525 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3526 break; 3527 case WLAN_CIPHER_SUITE_GCMP_256: 3528 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3529 break; 3530 case 0: 3531 /* open profile */ 3532 break; 3533 default: 3534 /* cipher not supported, don't send anything to iwlmei */ 3535 return; 3536 } 3537 3538 switch (mvmvif->rekey_data.akm) { 3539 case WLAN_AKM_SUITE_SAE & 0xff: 3540 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3541 break; 3542 case WLAN_AKM_SUITE_PSK & 0xff: 3543 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3544 break; 3545 case WLAN_AKM_SUITE_8021X & 0xff: 3546 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3547 break; 3548 case 0: 3549 /* open profile */ 3550 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3551 break; 3552 default: 3553 /* auth method / AKM not supported */ 3554 /* TODO: All the FT vesions of these? */ 3555 return; 3556 } 3557 3558 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len); 3559 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3560 3561 /* TODO: add support for collocated AP data */ 3562 iwl_mei_host_associated(&conn_info, NULL); 3563#endif 3564} 3565 3566static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm, 3567 struct ieee80211_vif *vif, 3568 bool force_assoc_off) 3569{ 3570 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL); 3571} 3572 3573static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3574 struct ieee80211_vif *vif, 3575 struct ieee80211_sta *sta, 3576 enum ieee80211_sta_state old_state, 3577 enum ieee80211_sta_state new_state) 3578{ 3579 static const struct iwl_mvm_sta_state_ops callbacks = { 3580 .add_sta = iwl_mvm_add_sta, 3581 .update_sta = iwl_mvm_update_sta, 3582 .rm_sta = iwl_mvm_rm_sta, 3583 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper, 3584 }; 3585 3586 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state, 3587 &callbacks); 3588} 3589 3590/* FIXME: temporary making two assumptions in all sta handling functions: 3591 * (1) when setting sta state, the link exists and protected 3592 * (2) if a link is valid in sta then it's valid in vif (can 3593 * use same index in the link array) 3594 */ 3595static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm, 3596 struct ieee80211_vif *vif, 3597 struct ieee80211_sta *sta) 3598{ 3599 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3600 unsigned int link_id; 3601 3602 for_each_mvm_vif_valid_link(mvmvif, link_id) { 3603 struct ieee80211_bss_conf *conf = 3604 link_conf_dereference_check(vif, link_id); 3605 struct ieee80211_link_sta *link_sta = 3606 link_sta_dereference_check(sta, link_id); 3607 3608 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt) 3609 continue; 3610 3611 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta, 3612 mvmvif->link[link_id]->phy_ctxt->channel->band); 3613 } 3614} 3615 3616#define IWL_MVM_MIN_BEACON_INTERVAL_TU 16 3617 3618static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm, 3619 struct ieee80211_vif *vif, 3620 struct ieee80211_sta *sta) 3621{ 3622 struct ieee80211_link_sta *link_sta; 3623 unsigned int link_id; 3624 3625 /* Beacon interval check - firmware will crash if the beacon 3626 * interval is less than 16. We can't avoid connecting at all, 3627 * so refuse the station state change, this will cause mac80211 3628 * to abandon attempts to connect to this AP, and eventually 3629 * wpa_s will blocklist the AP... 3630 */ 3631 3632 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3633 struct ieee80211_bss_conf *link_conf = 3634 link_conf_dereference_protected(vif, link_id); 3635 3636 if (!link_conf) 3637 continue; 3638 3639 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) { 3640 IWL_ERR(mvm, 3641 "Beacon interval %d for AP %pM is too small\n", 3642 link_conf->beacon_int, link_sta->addr); 3643 return false; 3644 } 3645 3646 link_conf->he_support = link_sta->he_cap.has_he; 3647 } 3648 3649 return true; 3650} 3651 3652static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw, 3653 struct ieee80211_vif *vif, 3654 struct ieee80211_sta *sta, 3655 bool is_sta) 3656{ 3657 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3658 struct ieee80211_link_sta *link_sta; 3659 unsigned int link_id; 3660 3661 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3662 struct ieee80211_bss_conf *link_conf = 3663 link_conf_dereference_protected(vif, link_id); 3664 3665 if (!link_conf || !mvmvif->link[link_id]) 3666 continue; 3667 3668 link_conf->he_support = link_sta->he_cap.has_he; 3669 3670 if (is_sta) { 3671 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3672 if (link_sta->he_cap.has_he) 3673 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif, 3674 link_id, 3675 link_conf); 3676 } 3677 } 3678} 3679 3680static int 3681iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm, 3682 struct ieee80211_vif *vif, 3683 struct ieee80211_sta *sta, 3684 const struct iwl_mvm_sta_state_ops *callbacks) 3685{ 3686 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3687 struct ieee80211_link_sta *link_sta; 3688 unsigned int i; 3689 int ret; 3690 3691 lockdep_assert_held(&mvm->mutex); 3692 3693 if (vif->type == NL80211_IFTYPE_STATION && 3694 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta)) 3695 return -EINVAL; 3696 3697 if (sta->tdls && 3698 (vif->p2p || 3699 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_MVM_TDLS_STA_COUNT || 3700 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3701 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3702 return -EBUSY; 3703 } 3704 3705 ret = callbacks->add_sta(mvm, vif, sta); 3706 if (sta->tdls && ret == 0) { 3707 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3708 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3709 NL80211_TDLS_SETUP); 3710 } 3711 3712 if (ret) 3713 return ret; 3714 3715 for_each_sta_active_link(vif, sta, link_sta, i) 3716 link_sta->agg.max_rc_amsdu_len = 1; 3717 3718 ieee80211_sta_recalc_aggregates(sta); 3719 3720 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3721 mvmvif->ap_sta = sta; 3722 3723 /* 3724 * Initialize the rates here already - this really tells 3725 * the firmware only what the supported legacy rates are 3726 * (may be) since it's initialized already from what the 3727 * AP advertised in the beacon/probe response. This will 3728 * allow the firmware to send auth/assoc frames with one 3729 * of the supported rates already, rather than having to 3730 * use a mandatory rate. 3731 * If we're the AP, we'll just assume mandatory rates at 3732 * this point, but we know nothing about the STA anyway. 3733 */ 3734 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3735 3736 return 0; 3737} 3738 3739static int 3740iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw, 3741 struct iwl_mvm *mvm, 3742 struct ieee80211_vif *vif, 3743 struct ieee80211_sta *sta, 3744 const struct iwl_mvm_sta_state_ops *callbacks) 3745{ 3746 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3747 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3748 struct ieee80211_link_sta *link_sta; 3749 unsigned int link_id; 3750 3751 lockdep_assert_held(&mvm->mutex); 3752 3753 if (vif->type == NL80211_IFTYPE_AP) { 3754 iwl_mvm_vif_set_he_support(hw, vif, sta, false); 3755 mvmvif->ap_assoc_sta_count++; 3756 callbacks->mac_ctxt_changed(mvm, vif, false); 3757 3758 /* since the below is not for MLD API, it's ok to use 3759 * the default bss_conf 3760 */ 3761 if (!mvm->mld_api_is_used && 3762 (vif->bss_conf.he_support && 3763 !iwlwifi_mod_params.disable_11ax)) 3764 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id); 3765 } else if (vif->type == NL80211_IFTYPE_STATION) { 3766 iwl_mvm_vif_set_he_support(hw, vif, sta, true); 3767 3768 callbacks->mac_ctxt_changed(mvm, vif, false); 3769 3770 if (!mvm->mld_api_is_used) 3771 goto out; 3772 3773 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3774 struct ieee80211_bss_conf *link_conf = 3775 link_conf_dereference_protected(vif, link_id); 3776 3777 if (WARN_ON(!link_conf)) 3778 return -EINVAL; 3779 if (!mvmvif->link[link_id]) 3780 continue; 3781 3782 iwl_mvm_link_changed(mvm, vif, link_conf, 3783 LINK_CONTEXT_MODIFY_ALL & 3784 ~LINK_CONTEXT_MODIFY_ACTIVE, 3785 true); 3786 } 3787 } 3788 3789out: 3790 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3791 3792 return callbacks->update_sta(mvm, vif, sta); 3793} 3794 3795static int 3796iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm, 3797 struct ieee80211_vif *vif, 3798 struct ieee80211_sta *sta, 3799 const struct iwl_mvm_sta_state_ops *callbacks) 3800{ 3801 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3802 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3803 3804 lockdep_assert_held(&mvm->mutex); 3805 3806 /* we don't support TDLS during DCM */ 3807 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3808 iwl_mvm_teardown_tdls_peers(mvm); 3809 3810 if (sta->tdls) { 3811 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3812 NL80211_TDLS_ENABLE_LINK); 3813 } else { 3814 /* enable beacon filtering */ 3815 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); 3816 3817 mvmvif->authorized = 1; 3818 3819 callbacks->mac_ctxt_changed(mvm, vif, false); 3820 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 3821 3822 /* when client is authorized (AP station marked as such), 3823 * try to enable more links 3824 */ 3825 if (vif->type == NL80211_IFTYPE_STATION && 3826 !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3827 iwl_mvm_mld_select_links(mvm, vif, false); 3828 } 3829 3830 mvm_sta->authorized = true; 3831 3832 /* MFP is set by default before the station is authorized. 3833 * Clear it here in case it's not used. 3834 */ 3835 if (!sta->mfp) { 3836 int ret = callbacks->update_sta(mvm, vif, sta); 3837 3838 if (ret) 3839 return ret; 3840 } 3841 3842 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3843 3844 return 0; 3845} 3846 3847static int 3848iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm, 3849 struct ieee80211_vif *vif, 3850 struct ieee80211_sta *sta, 3851 const struct iwl_mvm_sta_state_ops *callbacks) 3852{ 3853 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3854 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3855 3856 lockdep_assert_held(&mvm->mutex); 3857 3858 mvmsta->authorized = false; 3859 3860 /* once we move into assoc state, need to update rate scale to 3861 * disable using wide bandwidth 3862 */ 3863 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3864 3865 if (!sta->tdls) { 3866 /* Set this but don't call iwl_mvm_mac_ctxt_changed() 3867 * yet to avoid sending high prio again for a little 3868 * time. 3869 */ 3870 mvmvif->authorized = 0; 3871 3872 /* disable beacon filtering */ 3873 iwl_mvm_disable_beacon_filter(mvm, vif); 3874 } 3875 3876 return 0; 3877} 3878 3879/* Common part for MLD and non-MLD modes */ 3880int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw, 3881 struct ieee80211_vif *vif, 3882 struct ieee80211_sta *sta, 3883 enum ieee80211_sta_state old_state, 3884 enum ieee80211_sta_state new_state, 3885 const struct iwl_mvm_sta_state_ops *callbacks) 3886{ 3887 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3888 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3889 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3890 struct ieee80211_link_sta *link_sta; 3891 unsigned int link_id; 3892 int ret; 3893 3894 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 3895 sta->addr, old_state, new_state); 3896 3897 /* 3898 * If we are in a STA removal flow and in DQA mode: 3899 * 3900 * This is after the sync_rcu part, so the queues have already been 3901 * flushed. No more TXs on their way in mac80211's path, and no more in 3902 * the queues. 3903 * Also, we won't be getting any new TX frames for this station. 3904 * What we might have are deferred TX frames that need to be taken care 3905 * of. 3906 * 3907 * Drop any still-queued deferred-frame before removing the STA, and 3908 * make sure the worker is no longer handling frames for this STA. 3909 */ 3910 if (old_state == IEEE80211_STA_NONE && 3911 new_state == IEEE80211_STA_NOTEXIST) { 3912 flush_work(&mvm->add_stream_wk); 3913 3914 /* 3915 * No need to make sure deferred TX indication is off since the 3916 * worker will already remove it if it was on 3917 */ 3918 3919 /* 3920 * Additionally, reset the 40 MHz capability if we disconnected 3921 * from the AP now. 3922 */ 3923 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 3924 3925 /* Also free dup data just in case any assertions below fail */ 3926 kfree(mvm_sta->dup_data); 3927 } 3928 3929 mutex_lock(&mvm->mutex); 3930 3931 /* this would be a mac80211 bug ... but don't crash, unless we had a 3932 * firmware crash while we were activating a link, in which case it is 3933 * legit to have phy_ctxt = NULL. Don't bother not to WARN if we are in 3934 * recovery flow since we spit tons of error messages anyway. 3935 */ 3936 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3937 if (WARN_ON_ONCE(!mvmvif->link[link_id] || 3938 !mvmvif->link[link_id]->phy_ctxt)) { 3939 mutex_unlock(&mvm->mutex); 3940 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3941 &mvm->status) ? 0 : -EINVAL; 3942 } 3943 } 3944 3945 /* track whether or not the station is associated */ 3946 mvm_sta->sta_state = new_state; 3947 3948 if (old_state == IEEE80211_STA_NOTEXIST && 3949 new_state == IEEE80211_STA_NONE) { 3950 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta, 3951 callbacks); 3952 if (ret < 0) 3953 goto out_unlock; 3954 } else if (old_state == IEEE80211_STA_NONE && 3955 new_state == IEEE80211_STA_AUTH) { 3956 /* 3957 * EBS may be disabled due to previous failures reported by FW. 3958 * Reset EBS status here assuming environment has been changed. 3959 */ 3960 mvm->last_ebs_successful = true; 3961 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 3962 ret = 0; 3963 } else if (old_state == IEEE80211_STA_AUTH && 3964 new_state == IEEE80211_STA_ASSOC) { 3965 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta, 3966 callbacks); 3967 } else if (old_state == IEEE80211_STA_ASSOC && 3968 new_state == IEEE80211_STA_AUTHORIZED) { 3969 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta, 3970 callbacks); 3971 } else if (old_state == IEEE80211_STA_AUTHORIZED && 3972 new_state == IEEE80211_STA_ASSOC) { 3973 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta, 3974 callbacks); 3975 } else if (old_state == IEEE80211_STA_ASSOC && 3976 new_state == IEEE80211_STA_AUTH) { 3977 if (vif->type == NL80211_IFTYPE_AP) { 3978 mvmvif->ap_assoc_sta_count--; 3979 callbacks->mac_ctxt_changed(mvm, vif, false); 3980 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3981 iwl_mvm_stop_session_protection(mvm, vif); 3982 ret = 0; 3983 } else if (old_state == IEEE80211_STA_AUTH && 3984 new_state == IEEE80211_STA_NONE) { 3985 ret = 0; 3986 } else if (old_state == IEEE80211_STA_NONE && 3987 new_state == IEEE80211_STA_NOTEXIST) { 3988 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 3989 iwl_mvm_stop_session_protection(mvm, vif); 3990 mvmvif->ap_sta = NULL; 3991 } 3992 ret = callbacks->rm_sta(mvm, vif, sta); 3993 if (sta->tdls) { 3994 iwl_mvm_recalc_tdls_state(mvm, vif, false); 3995 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3996 NL80211_TDLS_DISABLE_LINK); 3997 } 3998 3999 if (unlikely(ret && 4000 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 4001 &mvm->status))) 4002 ret = 0; 4003 } else { 4004 ret = -EIO; 4005 } 4006 out_unlock: 4007 mutex_unlock(&mvm->mutex); 4008 4009 if (sta->tdls && ret == 0) { 4010 if (old_state == IEEE80211_STA_NOTEXIST && 4011 new_state == IEEE80211_STA_NONE) 4012 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 4013 else if (old_state == IEEE80211_STA_NONE && 4014 new_state == IEEE80211_STA_NOTEXIST) 4015 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 4016 } 4017 4018 return ret; 4019} 4020 4021int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 4022{ 4023 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4024 4025 mvm->rts_threshold = value; 4026 4027 return 0; 4028} 4029 4030void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4031 struct ieee80211_sta *sta, u32 changed) 4032{ 4033 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4034 4035 if (changed & (IEEE80211_RC_BW_CHANGED | 4036 IEEE80211_RC_SUPP_RATES_CHANGED | 4037 IEEE80211_RC_NSS_CHANGED)) 4038 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4039 4040 if (vif->type == NL80211_IFTYPE_STATION && 4041 changed & IEEE80211_RC_NSS_CHANGED) 4042 iwl_mvm_sf_update(mvm, vif, false); 4043} 4044 4045static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 4046 struct ieee80211_vif *vif, 4047 unsigned int link_id, u16 ac, 4048 const struct ieee80211_tx_queue_params *params) 4049{ 4050 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4051 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4052 4053 mvmvif->deflink.queue_params[ac] = *params; 4054 4055 /* 4056 * No need to update right away, we'll get BSS_CHANGED_QOS 4057 * The exception is P2P_DEVICE interface which needs immediate update. 4058 */ 4059 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 4060 int ret; 4061 4062 mutex_lock(&mvm->mutex); 4063 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4064 mutex_unlock(&mvm->mutex); 4065 return ret; 4066 } 4067 return 0; 4068} 4069 4070void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 4071 struct ieee80211_vif *vif, 4072 struct ieee80211_prep_tx_info *info) 4073{ 4074 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4075 4076 mutex_lock(&mvm->mutex); 4077 iwl_mvm_protect_assoc(mvm, vif, info->duration, info->link_id); 4078 mutex_unlock(&mvm->mutex); 4079} 4080 4081void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 4082 struct ieee80211_vif *vif, 4083 struct ieee80211_prep_tx_info *info) 4084{ 4085 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4086 4087 /* for successful cases (auth/assoc), don't cancel session protection */ 4088 if (info->success) 4089 return; 4090 4091 mutex_lock(&mvm->mutex); 4092 iwl_mvm_stop_session_protection(mvm, vif); 4093 mutex_unlock(&mvm->mutex); 4094} 4095 4096int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 4097 struct ieee80211_vif *vif, 4098 struct cfg80211_sched_scan_request *req, 4099 struct ieee80211_scan_ies *ies) 4100{ 4101 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4102 4103 int ret; 4104 4105 mutex_lock(&mvm->mutex); 4106 4107 if (!vif->cfg.idle) { 4108 ret = -EBUSY; 4109 goto out; 4110 } 4111 4112 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 4113 4114out: 4115 mutex_unlock(&mvm->mutex); 4116 return ret; 4117} 4118 4119int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 4120 struct ieee80211_vif *vif) 4121{ 4122 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4123 int ret; 4124 4125 mutex_lock(&mvm->mutex); 4126 4127 /* Due to a race condition, it's possible that mac80211 asks 4128 * us to stop a sched_scan when it's already stopped. This 4129 * can happen, for instance, if we stopped the scan ourselves, 4130 * called ieee80211_sched_scan_stopped() and the userspace called 4131 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 4132 * could run. To handle this, simply return if the scan is 4133 * not running. 4134 */ 4135 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 4136 mutex_unlock(&mvm->mutex); 4137 return 0; 4138 } 4139 4140 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 4141 mutex_unlock(&mvm->mutex); 4142 iwl_mvm_wait_for_async_handlers(mvm); 4143 4144 return ret; 4145} 4146 4147static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 4148 enum set_key_cmd cmd, 4149 struct ieee80211_vif *vif, 4150 struct ieee80211_sta *sta, 4151 struct ieee80211_key_conf *key) 4152{ 4153 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4154 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4155 struct iwl_mvm_sta *mvmsta = NULL; 4156 struct iwl_mvm_key_pn *ptk_pn = NULL; 4157 int keyidx = key->keyidx; 4158 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 4159 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 4160 int ret, i; 4161 u8 key_offset; 4162 4163 if (sta) 4164 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4165 4166 switch (key->cipher) { 4167 case WLAN_CIPHER_SUITE_TKIP: 4168 if (!mvm->trans->trans_cfg->gen2) { 4169 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 4170 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4171 } else if (vif->type == NL80211_IFTYPE_STATION) { 4172 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 4173 } else { 4174 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 4175 return -EOPNOTSUPP; 4176 } 4177 break; 4178 case WLAN_CIPHER_SUITE_CCMP: 4179 case WLAN_CIPHER_SUITE_GCMP: 4180 case WLAN_CIPHER_SUITE_GCMP_256: 4181 if (!iwl_mvm_has_new_tx_api(mvm)) 4182 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4183 break; 4184 case WLAN_CIPHER_SUITE_AES_CMAC: 4185 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 4186 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 4187 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 4188 break; 4189 case WLAN_CIPHER_SUITE_WEP40: 4190 case WLAN_CIPHER_SUITE_WEP104: 4191 if (vif->type == NL80211_IFTYPE_STATION) 4192 break; 4193 if (iwl_mvm_has_new_tx_api(mvm)) 4194 return -EOPNOTSUPP; 4195 /* support HW crypto on TX */ 4196 return 0; 4197 default: 4198 return -EOPNOTSUPP; 4199 } 4200 4201 switch (cmd) { 4202 case SET_KEY: 4203 if (vif->type == NL80211_IFTYPE_STATION && 4204 (keyidx == 6 || keyidx == 7)) 4205 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 4206 key); 4207 4208 if ((vif->type == NL80211_IFTYPE_ADHOC || 4209 vif->type == NL80211_IFTYPE_AP) && !sta) { 4210 /* 4211 * GTK on AP interface is a TX-only key, return 0; 4212 * on IBSS they're per-station and because we're lazy 4213 * we don't support them for RX, so do the same. 4214 * CMAC/GMAC in AP/IBSS modes must be done in software 4215 * on older NICs. 4216 * 4217 * Except, of course, beacon protection - it must be 4218 * offloaded since we just set a beacon template, and 4219 * then we must also offload the IGTK (not just BIGTK) 4220 * for firmware reasons. 4221 * 4222 * So just check for beacon protection - if we don't 4223 * have it we cannot get here with keyidx >= 6, and 4224 * if we do have it we need to send the key to FW in 4225 * all cases (CMAC/GMAC). 4226 */ 4227 if (!wiphy_ext_feature_isset(hw->wiphy, 4228 NL80211_EXT_FEATURE_BEACON_PROTECTION) && 4229 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 4230 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 4231 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) { 4232 ret = -EOPNOTSUPP; 4233 break; 4234 } 4235 4236 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 4237 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 4238 !iwl_mvm_has_new_tx_api(mvm)) { 4239 key->hw_key_idx = STA_KEY_IDX_INVALID; 4240 ret = 0; 4241 break; 4242 } 4243 4244 if (!mvmvif->ap_ibss_active) { 4245 for (i = 0; 4246 i < ARRAY_SIZE(mvmvif->ap_early_keys); 4247 i++) { 4248 if (!mvmvif->ap_early_keys[i]) { 4249 mvmvif->ap_early_keys[i] = key; 4250 break; 4251 } 4252 } 4253 4254 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 4255 ret = -ENOSPC; 4256 else 4257 ret = 0; 4258 4259 break; 4260 } 4261 } 4262 4263 /* During FW restart, in order to restore the state as it was, 4264 * don't try to reprogram keys we previously failed for. 4265 */ 4266 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4267 key->hw_key_idx == STA_KEY_IDX_INVALID) { 4268 IWL_DEBUG_MAC80211(mvm, 4269 "skip invalid idx key programming during restart\n"); 4270 ret = 0; 4271 break; 4272 } 4273 4274 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4275 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4276 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4277 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4278 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4279 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4280 struct ieee80211_key_seq seq; 4281 int tid, q; 4282 4283 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 4284 ptk_pn = kzalloc(struct_size(ptk_pn, q, 4285 mvm->trans->num_rx_queues), 4286 GFP_KERNEL); 4287 if (!ptk_pn) { 4288 ret = -ENOMEM; 4289 break; 4290 } 4291 4292 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 4293 ieee80211_get_key_rx_seq(key, tid, &seq); 4294 for (q = 0; q < mvm->trans->num_rx_queues; q++) 4295 memcpy(ptk_pn->q[q].pn[tid], 4296 seq.ccmp.pn, 4297 IEEE80211_CCMP_PN_LEN); 4298 } 4299 4300 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 4301 } 4302 4303 /* in HW restart reuse the index, otherwise request a new one */ 4304 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4305 key_offset = key->hw_key_idx; 4306 else 4307 key_offset = STA_KEY_IDX_INVALID; 4308 4309 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 4310 mvmsta->pairwise_cipher = key->cipher; 4311 4312 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n", 4313 sta ? sta->addr : NULL, key->keyidx); 4314 4315 if (sec_key_ver) 4316 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 4317 else 4318 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 4319 4320 if (ret) { 4321 IWL_WARN(mvm, "set key failed\n"); 4322 key->hw_key_idx = STA_KEY_IDX_INVALID; 4323 if (ptk_pn) { 4324 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4325 kfree(ptk_pn); 4326 } 4327 /* 4328 * can't add key for RX, but we don't need it 4329 * in the device for TX so still return 0, 4330 * unless we have new TX API where we cannot 4331 * put key material into the TX_CMD 4332 */ 4333 if (iwl_mvm_has_new_tx_api(mvm)) 4334 ret = -EOPNOTSUPP; 4335 else 4336 ret = 0; 4337 } 4338 4339 break; 4340 case DISABLE_KEY: 4341 if (vif->type == NL80211_IFTYPE_STATION && 4342 (keyidx == 6 || keyidx == 7)) 4343 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 4344 NULL); 4345 4346 ret = -ENOENT; 4347 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 4348 if (mvmvif->ap_early_keys[i] == key) { 4349 mvmvif->ap_early_keys[i] = NULL; 4350 ret = 0; 4351 } 4352 } 4353 4354 /* found in pending list - don't do anything else */ 4355 if (ret == 0) 4356 break; 4357 4358 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 4359 ret = 0; 4360 break; 4361 } 4362 4363 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4364 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4365 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4366 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4367 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4368 ptk_pn = rcu_dereference_protected( 4369 mvmsta->ptk_pn[keyidx], 4370 lockdep_is_held(&mvm->mutex)); 4371 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4372 if (ptk_pn) 4373 kfree_rcu(ptk_pn, rcu_head); 4374 } 4375 4376 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 4377 if (sec_key_ver) 4378 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 4379 else 4380 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 4381 break; 4382 default: 4383 ret = -EINVAL; 4384 } 4385 4386 return ret; 4387} 4388 4389int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 4390 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 4391 struct ieee80211_key_conf *key) 4392{ 4393 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4394 int ret; 4395 4396 mutex_lock(&mvm->mutex); 4397 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 4398 mutex_unlock(&mvm->mutex); 4399 4400 return ret; 4401} 4402 4403void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 4404 struct ieee80211_vif *vif, 4405 struct ieee80211_key_conf *keyconf, 4406 struct ieee80211_sta *sta, 4407 u32 iv32, u16 *phase1key) 4408{ 4409 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4410 4411 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 4412 return; 4413 4414 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 4415} 4416 4417 4418static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 4419 struct iwl_rx_packet *pkt, void *data) 4420{ 4421 struct iwl_mvm *mvm = 4422 container_of(notif_wait, struct iwl_mvm, notif_wait); 4423 struct iwl_hs20_roc_res *resp; 4424 int resp_len = iwl_rx_packet_payload_len(pkt); 4425 struct iwl_mvm_time_event_data *te_data = data; 4426 4427 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 4428 return true; 4429 4430 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 4431 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 4432 return true; 4433 } 4434 4435 resp = (void *)pkt->data; 4436 4437 IWL_DEBUG_TE(mvm, 4438 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 4439 resp->status, resp->event_unique_id); 4440 4441 te_data->uid = le32_to_cpu(resp->event_unique_id); 4442 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 4443 te_data->uid); 4444 4445 spin_lock_bh(&mvm->time_event_lock); 4446 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 4447 spin_unlock_bh(&mvm->time_event_lock); 4448 4449 return true; 4450} 4451 4452static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 4453 struct ieee80211_channel *channel, 4454 struct ieee80211_vif *vif, 4455 int duration) 4456{ 4457 int res; 4458 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4459 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 4460 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 4461 struct iwl_notification_wait wait_time_event; 4462 u32 req_dur, delay; 4463 struct iwl_hs20_roc_req aux_roc_req = { 4464 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4465 .id_and_color = 4466 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 4467 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 4468 }; 4469 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 4470 &aux_roc_req.channel_info); 4471 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 4472 4473 /* Set the channel info data */ 4474 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 4475 iwl_mvm_phy_band_from_nl80211(channel->band), 4476 IWL_PHY_CHANNEL_MODE20, 4477 0); 4478 4479 /* Set the time and duration */ 4480 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 4481 4482 iwl_mvm_roc_duration_and_delay(vif, duration, &req_dur, &delay); 4483 tail->duration = cpu_to_le32(req_dur); 4484 tail->apply_time_max_delay = cpu_to_le32(delay); 4485 4486 IWL_DEBUG_TE(mvm, 4487 "ROC: Requesting to remain on channel %u for %ums\n", 4488 channel->hw_value, req_dur); 4489 IWL_DEBUG_TE(mvm, 4490 "\t(requested = %ums, max_delay = %ums)\n", 4491 duration, delay); 4492 4493 /* Set the node address */ 4494 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 4495 4496 lockdep_assert_held(&mvm->mutex); 4497 4498 spin_lock_bh(&mvm->time_event_lock); 4499 4500 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 4501 spin_unlock_bh(&mvm->time_event_lock); 4502 return -EIO; 4503 } 4504 4505 te_data->vif = vif; 4506 te_data->duration = duration; 4507 te_data->id = HOT_SPOT_CMD; 4508 4509 spin_unlock_bh(&mvm->time_event_lock); 4510 4511 /* 4512 * Use a notification wait, which really just processes the 4513 * command response and doesn't wait for anything, in order 4514 * to be able to process the response and get the UID inside 4515 * the RX path. Using CMD_WANT_SKB doesn't work because it 4516 * stores the buffer and then wakes up this thread, by which 4517 * time another notification (that the time event started) 4518 * might already be processed unsuccessfully. 4519 */ 4520 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 4521 time_event_response, 4522 ARRAY_SIZE(time_event_response), 4523 iwl_mvm_rx_aux_roc, te_data); 4524 4525 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 4526 &aux_roc_req); 4527 4528 if (res) { 4529 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 4530 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 4531 goto out_clear_te; 4532 } 4533 4534 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 4535 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 4536 /* should never fail */ 4537 WARN_ON_ONCE(res); 4538 4539 if (res) { 4540 out_clear_te: 4541 spin_lock_bh(&mvm->time_event_lock); 4542 iwl_mvm_te_clear_data(mvm, te_data); 4543 spin_unlock_bh(&mvm->time_event_lock); 4544 } 4545 4546 return res; 4547} 4548 4549static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id) 4550{ 4551 int ret = 0; 4552 4553 lockdep_assert_held(&mvm->mutex); 4554 4555 if (!fw_has_capa(&mvm->fw->ucode_capa, 4556 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4557 IWL_ERR(mvm, "hotspot not supported\n"); 4558 return -EINVAL; 4559 } 4560 4561 if (iwl_mvm_has_new_station_api(mvm->fw)) { 4562 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4563 WARN(ret, "Failed to allocate aux station"); 4564 } 4565 4566 return ret; 4567} 4568 4569static int iwl_mvm_roc_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 4570{ 4571 int ret; 4572 4573 lockdep_assert_held(&mvm->mutex); 4574 4575 ret = iwl_mvm_binding_add_vif(mvm, vif); 4576 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4577 return ret; 4578 4579 /* The station and queue allocation must be done only after the binding 4580 * is done, as otherwise the FW might incorrectly configure its state. 4581 */ 4582 return iwl_mvm_add_p2p_bcast_sta(mvm, vif); 4583} 4584 4585static int iwl_mvm_roc(struct ieee80211_hw *hw, 4586 struct ieee80211_vif *vif, 4587 struct ieee80211_channel *channel, 4588 int duration, 4589 enum ieee80211_roc_type type) 4590{ 4591 static const struct iwl_mvm_roc_ops ops = { 4592 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20, 4593 .link = iwl_mvm_roc_link, 4594 }; 4595 4596 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops); 4597} 4598 4599static int iwl_mvm_roc_station(struct iwl_mvm *mvm, 4600 struct ieee80211_channel *channel, 4601 struct ieee80211_vif *vif, 4602 int duration) 4603{ 4604 int ret; 4605 u32 cmd_id = WIDE_ID(MAC_CONF_GROUP, ROC_CMD); 4606 u8 fw_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 4607 IWL_FW_CMD_VER_UNKNOWN); 4608 4609 if (fw_ver == IWL_FW_CMD_VER_UNKNOWN) { 4610 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, vif, duration); 4611 } else if (fw_ver == 3) { 4612 ret = iwl_mvm_roc_add_cmd(mvm, channel, vif, duration, 4613 ROC_ACTIVITY_HOTSPOT); 4614 } else { 4615 ret = -EOPNOTSUPP; 4616 IWL_ERR(mvm, "ROC command version %d mismatch!\n", fw_ver); 4617 } 4618 4619 return ret; 4620} 4621 4622static int iwl_mvm_p2p_find_phy_ctxt(struct iwl_mvm *mvm, 4623 struct ieee80211_vif *vif, 4624 struct ieee80211_channel *channel) 4625{ 4626 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4627 struct cfg80211_chan_def chandef; 4628 int i; 4629 4630 lockdep_assert_held(&mvm->mutex); 4631 4632 if (mvmvif->deflink.phy_ctxt && 4633 channel == mvmvif->deflink.phy_ctxt->channel) 4634 return 0; 4635 4636 /* Try using a PHY context that is already in use */ 4637 for (i = 0; i < NUM_PHY_CTX; i++) { 4638 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[i]; 4639 4640 if (!phy_ctxt->ref || mvmvif->deflink.phy_ctxt == phy_ctxt) 4641 continue; 4642 4643 if (channel == phy_ctxt->channel) { 4644 if (mvmvif->deflink.phy_ctxt) 4645 iwl_mvm_phy_ctxt_unref(mvm, 4646 mvmvif->deflink.phy_ctxt); 4647 4648 mvmvif->deflink.phy_ctxt = phy_ctxt; 4649 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4650 return 0; 4651 } 4652 } 4653 4654 /* We already have a phy_ctxt, but it's not on the right channel */ 4655 if (mvmvif->deflink.phy_ctxt) 4656 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 4657 4658 mvmvif->deflink.phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4659 if (!mvmvif->deflink.phy_ctxt) 4660 return -ENOSPC; 4661 4662 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4663 4664 return iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt, 4665 &chandef, NULL, 1, 1); 4666} 4667 4668/* Execute the common part for MLD and non-MLD modes */ 4669int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4670 struct ieee80211_channel *channel, int duration, 4671 enum ieee80211_roc_type type, 4672 const struct iwl_mvm_roc_ops *ops) 4673{ 4674 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4675 u32 lmac_id; 4676 int ret; 4677 4678 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4679 duration, type); 4680 4681 /* 4682 * Flush the done work, just in case it's still pending, so that 4683 * the work it does can complete and we can accept new frames. 4684 */ 4685 flush_work(&mvm->roc_done_wk); 4686 4687 mutex_lock(&mvm->mutex); 4688 4689 switch (vif->type) { 4690 case NL80211_IFTYPE_STATION: 4691 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band); 4692 4693 /* Use aux roc framework (HS20) */ 4694 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id); 4695 if (!ret) 4696 ret = iwl_mvm_roc_station(mvm, channel, vif, duration); 4697 goto out_unlock; 4698 case NL80211_IFTYPE_P2P_DEVICE: 4699 /* handle below */ 4700 break; 4701 default: 4702 IWL_ERR(mvm, "ROC: Invalid vif type=%u\n", vif->type); 4703 ret = -EINVAL; 4704 goto out_unlock; 4705 } 4706 4707 4708 ret = iwl_mvm_p2p_find_phy_ctxt(mvm, vif, channel); 4709 if (ret) 4710 goto out_unlock; 4711 4712 ret = ops->link(mvm, vif); 4713 if (ret) 4714 goto out_unlock; 4715 4716 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4717out_unlock: 4718 mutex_unlock(&mvm->mutex); 4719 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4720 return ret; 4721} 4722 4723int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4724 struct ieee80211_vif *vif) 4725{ 4726 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4727 4728 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4729 4730 mutex_lock(&mvm->mutex); 4731 iwl_mvm_stop_roc(mvm, vif); 4732 mutex_unlock(&mvm->mutex); 4733 4734 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4735 return 0; 4736} 4737 4738struct iwl_mvm_ftm_responder_iter_data { 4739 bool responder; 4740 struct ieee80211_chanctx_conf *ctx; 4741}; 4742 4743static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 4744 struct ieee80211_vif *vif) 4745{ 4746 struct iwl_mvm_ftm_responder_iter_data *data = _data; 4747 4748 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx && 4749 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 4750 data->responder = true; 4751} 4752 4753bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 4754 struct ieee80211_chanctx_conf *ctx) 4755{ 4756 struct iwl_mvm_ftm_responder_iter_data data = { 4757 .responder = false, 4758 .ctx = ctx, 4759 }; 4760 4761 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 4762 IEEE80211_IFACE_ITER_NORMAL, 4763 iwl_mvm_ftm_responder_chanctx_iter, 4764 &data); 4765 return data.responder; 4766} 4767 4768static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 4769 struct ieee80211_chanctx_conf *ctx) 4770{ 4771 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4772 struct iwl_mvm_phy_ctxt *phy_ctxt; 4773 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx); 4774 int ret; 4775 4776 lockdep_assert_held(&mvm->mutex); 4777 4778 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 4779 4780 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4781 if (!phy_ctxt) { 4782 ret = -ENOSPC; 4783 goto out; 4784 } 4785 4786 ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, def, &ctx->ap, 4787 ctx->rx_chains_static, 4788 ctx->rx_chains_dynamic); 4789 if (ret) { 4790 IWL_ERR(mvm, "Failed to add PHY context\n"); 4791 goto out; 4792 } 4793 4794 *phy_ctxt_id = phy_ctxt->id; 4795out: 4796 return ret; 4797} 4798 4799int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 4800 struct ieee80211_chanctx_conf *ctx) 4801{ 4802 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4803 int ret; 4804 4805 mutex_lock(&mvm->mutex); 4806 ret = __iwl_mvm_add_chanctx(mvm, ctx); 4807 mutex_unlock(&mvm->mutex); 4808 4809 return ret; 4810} 4811 4812static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 4813 struct ieee80211_chanctx_conf *ctx) 4814{ 4815 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4816 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4817 4818 lockdep_assert_held(&mvm->mutex); 4819 4820 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 4821} 4822 4823void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 4824 struct ieee80211_chanctx_conf *ctx) 4825{ 4826 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4827 4828 mutex_lock(&mvm->mutex); 4829 __iwl_mvm_remove_chanctx(mvm, ctx); 4830 mutex_unlock(&mvm->mutex); 4831} 4832 4833void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 4834 struct ieee80211_chanctx_conf *ctx, u32 changed) 4835{ 4836 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4837 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4838 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4839 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx); 4840 4841 if (WARN_ONCE((phy_ctxt->ref > 1) && 4842 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4843 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4844 IEEE80211_CHANCTX_CHANGE_RADAR | 4845 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 4846 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4847 phy_ctxt->ref, changed)) 4848 return; 4849 4850 mutex_lock(&mvm->mutex); 4851 4852 /* we are only changing the min_width, may be a noop */ 4853 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 4854 if (phy_ctxt->width == def->width) 4855 goto out_unlock; 4856 4857 /* we are just toggling between 20_NOHT and 20 */ 4858 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 4859 def->width <= NL80211_CHAN_WIDTH_20) 4860 goto out_unlock; 4861 } 4862 4863 iwl_mvm_bt_coex_vif_change(mvm); 4864 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, &ctx->ap, 4865 ctx->rx_chains_static, 4866 ctx->rx_chains_dynamic); 4867 4868out_unlock: 4869 mutex_unlock(&mvm->mutex); 4870} 4871 4872/* 4873 * This function executes the common part for MLD and non-MLD modes. 4874 * 4875 * Returns true if we're done assigning the chanctx 4876 * (either on failure or success) 4877 */ 4878static bool 4879__iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm, 4880 struct ieee80211_vif *vif, 4881 struct ieee80211_chanctx_conf *ctx, 4882 bool switching_chanctx, int *ret) 4883{ 4884 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4885 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4886 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4887 4888 lockdep_assert_held(&mvm->mutex); 4889 4890 mvmvif->deflink.phy_ctxt = phy_ctxt; 4891 4892 switch (vif->type) { 4893 case NL80211_IFTYPE_AP: 4894 /* only needed if we're switching chanctx (i.e. during CSA) */ 4895 if (switching_chanctx) { 4896 mvmvif->ap_ibss_active = true; 4897 break; 4898 } 4899 fallthrough; 4900 case NL80211_IFTYPE_ADHOC: 4901 /* 4902 * The AP binding flow is handled as part of the start_ap flow 4903 * (in bss_info_changed), similarly for IBSS. 4904 */ 4905 *ret = 0; 4906 return true; 4907 case NL80211_IFTYPE_STATION: 4908 break; 4909 case NL80211_IFTYPE_MONITOR: 4910 /* always disable PS when a monitor interface is active */ 4911 mvmvif->ps_disabled = true; 4912 break; 4913 default: 4914 *ret = -EINVAL; 4915 return true; 4916 } 4917 return false; 4918} 4919 4920static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 4921 struct ieee80211_vif *vif, 4922 struct ieee80211_bss_conf *link_conf, 4923 struct ieee80211_chanctx_conf *ctx, 4924 bool switching_chanctx) 4925{ 4926 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4927 int ret; 4928 4929 if (WARN_ON(!link_conf)) 4930 return -EINVAL; 4931 4932 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx, 4933 switching_chanctx, &ret)) 4934 goto out; 4935 4936 ret = iwl_mvm_binding_add_vif(mvm, vif); 4937 if (ret) 4938 goto out; 4939 4940 /* 4941 * Power state must be updated before quotas, 4942 * otherwise fw will complain. 4943 */ 4944 iwl_mvm_power_update_mac(mvm); 4945 4946 /* Setting the quota at this stage is only required for monitor 4947 * interfaces. For the other types, the bss_info changed flow 4948 * will handle quota settings. 4949 */ 4950 if (vif->type == NL80211_IFTYPE_MONITOR) { 4951 mvmvif->monitor_active = true; 4952 ret = iwl_mvm_update_quotas(mvm, false, NULL); 4953 if (ret) 4954 goto out_remove_binding; 4955 4956 ret = iwl_mvm_add_snif_sta(mvm, vif); 4957 if (ret) 4958 goto out_remove_binding; 4959 4960 } 4961 4962 /* Handle binding during CSA */ 4963 if (vif->type == NL80211_IFTYPE_AP) { 4964 iwl_mvm_update_quotas(mvm, false, NULL); 4965 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4966 } 4967 4968 if (vif->type == NL80211_IFTYPE_STATION) { 4969 if (!switching_chanctx) { 4970 mvmvif->csa_bcn_pending = false; 4971 goto out; 4972 } 4973 4974 mvmvif->csa_bcn_pending = true; 4975 4976 if (!fw_has_capa(&mvm->fw->ucode_capa, 4977 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4978 u32 duration = 5 * vif->bss_conf.beacon_int; 4979 4980 /* Protect the session to make sure we hear the first 4981 * beacon on the new channel. 4982 */ 4983 iwl_mvm_protect_session(mvm, vif, duration, duration, 4984 vif->bss_conf.beacon_int / 2, 4985 true); 4986 } 4987 4988 iwl_mvm_update_quotas(mvm, false, NULL); 4989 } 4990 4991 goto out; 4992 4993out_remove_binding: 4994 iwl_mvm_binding_remove_vif(mvm, vif); 4995 iwl_mvm_power_update_mac(mvm); 4996out: 4997 if (ret) 4998 mvmvif->deflink.phy_ctxt = NULL; 4999 return ret; 5000} 5001 5002static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 5003 struct ieee80211_vif *vif, 5004 struct ieee80211_bss_conf *link_conf, 5005 struct ieee80211_chanctx_conf *ctx) 5006{ 5007 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5008 int ret; 5009 5010 mutex_lock(&mvm->mutex); 5011 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5012 mutex_unlock(&mvm->mutex); 5013 5014 return ret; 5015} 5016 5017/* 5018 * This function executes the common part for MLD and non-MLD modes. 5019 * 5020 * Returns if chanctx unassign chanctx is done 5021 * (either on failure or success) 5022 */ 5023static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm, 5024 struct ieee80211_vif *vif, 5025 bool switching_chanctx) 5026{ 5027 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5028 5029 lockdep_assert_held(&mvm->mutex); 5030 iwl_mvm_remove_time_event(mvm, mvmvif, 5031 &mvmvif->time_event_data); 5032 5033 switch (vif->type) { 5034 case NL80211_IFTYPE_ADHOC: 5035 return true; 5036 case NL80211_IFTYPE_MONITOR: 5037 mvmvif->monitor_active = false; 5038 mvmvif->ps_disabled = false; 5039 break; 5040 case NL80211_IFTYPE_AP: 5041 /* This part is triggered only during CSA */ 5042 if (!switching_chanctx || !mvmvif->ap_ibss_active) 5043 return true; 5044 5045 mvmvif->csa_countdown = false; 5046 5047 /* Set CS bit on all the stations */ 5048 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 5049 5050 /* Save blocked iface, the timeout is set on the next beacon */ 5051 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 5052 5053 mvmvif->ap_ibss_active = false; 5054 break; 5055 default: 5056 break; 5057 } 5058 return false; 5059} 5060 5061static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 5062 struct ieee80211_vif *vif, 5063 struct ieee80211_bss_conf *link_conf, 5064 struct ieee80211_chanctx_conf *ctx, 5065 bool switching_chanctx) 5066{ 5067 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5068 struct ieee80211_vif *disabled_vif = NULL; 5069 5070 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx)) 5071 goto out; 5072 5073 if (vif->type == NL80211_IFTYPE_MONITOR) 5074 iwl_mvm_rm_snif_sta(mvm, vif); 5075 5076 5077 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) { 5078 disabled_vif = vif; 5079 if (!fw_has_capa(&mvm->fw->ucode_capa, 5080 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 5081 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 5082 } 5083 5084 iwl_mvm_update_quotas(mvm, false, disabled_vif); 5085 iwl_mvm_binding_remove_vif(mvm, vif); 5086 5087out: 5088 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 5089 switching_chanctx) 5090 return; 5091 mvmvif->deflink.phy_ctxt = NULL; 5092 iwl_mvm_power_update_mac(mvm); 5093} 5094 5095static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 5096 struct ieee80211_vif *vif, 5097 struct ieee80211_bss_conf *link_conf, 5098 struct ieee80211_chanctx_conf *ctx) 5099{ 5100 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5101 5102 mutex_lock(&mvm->mutex); 5103 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5104 mutex_unlock(&mvm->mutex); 5105} 5106 5107static int 5108iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 5109 struct ieee80211_vif_chanctx_switch *vifs, 5110 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5111{ 5112 int ret; 5113 5114 mutex_lock(&mvm->mutex); 5115 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5116 vifs[0].old_ctx, true); 5117 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 5118 5119 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 5120 if (ret) { 5121 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 5122 goto out_reassign; 5123 } 5124 5125 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5126 vifs[0].new_ctx, true); 5127 if (ret) { 5128 IWL_ERR(mvm, 5129 "failed to assign new_ctx during channel switch\n"); 5130 goto out_remove; 5131 } 5132 5133 /* we don't support TDLS during DCM - can be caused by channel switch */ 5134 if (iwl_mvm_phy_ctx_count(mvm) > 1) 5135 iwl_mvm_teardown_tdls_peers(mvm); 5136 5137 goto out; 5138 5139out_remove: 5140 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 5141 5142out_reassign: 5143 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 5144 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 5145 goto out_restart; 5146 } 5147 5148 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5149 vifs[0].old_ctx, true)) { 5150 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5151 goto out_restart; 5152 } 5153 5154 goto out; 5155 5156out_restart: 5157 /* things keep failing, better restart the hw */ 5158 iwl_mvm_nic_restart(mvm, false); 5159 5160out: 5161 mutex_unlock(&mvm->mutex); 5162 5163 return ret; 5164} 5165 5166static int 5167iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 5168 struct ieee80211_vif_chanctx_switch *vifs, 5169 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5170{ 5171 int ret; 5172 5173 mutex_lock(&mvm->mutex); 5174 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5175 vifs[0].old_ctx, true); 5176 5177 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5178 vifs[0].new_ctx, true); 5179 if (ret) { 5180 IWL_ERR(mvm, 5181 "failed to assign new_ctx during channel switch\n"); 5182 goto out_reassign; 5183 } 5184 5185 goto out; 5186 5187out_reassign: 5188 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5189 vifs[0].old_ctx, true)) { 5190 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5191 goto out_restart; 5192 } 5193 5194 goto out; 5195 5196out_restart: 5197 /* things keep failing, better restart the hw */ 5198 iwl_mvm_nic_restart(mvm, false); 5199 5200out: 5201 mutex_unlock(&mvm->mutex); 5202 5203 return ret; 5204} 5205 5206/* Execute the common part for both MLD and non-MLD modes */ 5207int 5208iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw, 5209 struct ieee80211_vif_chanctx_switch *vifs, 5210 int n_vifs, 5211 enum ieee80211_chanctx_switch_mode mode, 5212 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5213{ 5214 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5215 int ret; 5216 5217 /* we only support a single-vif right now */ 5218 if (n_vifs > 1) 5219 return -EOPNOTSUPP; 5220 5221 switch (mode) { 5222 case CHANCTX_SWMODE_SWAP_CONTEXTS: 5223 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops); 5224 break; 5225 case CHANCTX_SWMODE_REASSIGN_VIF: 5226 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops); 5227 break; 5228 default: 5229 ret = -EOPNOTSUPP; 5230 break; 5231 } 5232 5233 return ret; 5234} 5235 5236static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 5237 struct ieee80211_vif_chanctx_switch *vifs, 5238 int n_vifs, 5239 enum ieee80211_chanctx_switch_mode mode) 5240{ 5241 static const struct iwl_mvm_switch_vif_chanctx_ops ops = { 5242 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx, 5243 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx, 5244 }; 5245 5246 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops); 5247} 5248 5249int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 5250{ 5251 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5252 5253 return mvm->ibss_manager; 5254} 5255 5256static int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 5257 bool set) 5258{ 5259 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5260 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 5261 5262 if (!mvm_sta || !mvm_sta->vif) { 5263 IWL_ERR(mvm, "Station is not associated to a vif\n"); 5264 return -EINVAL; 5265 } 5266 5267 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif, 5268 &mvm_sta->vif->bss_conf); 5269} 5270 5271#ifdef CONFIG_NL80211_TESTMODE 5272static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 5273 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 5274 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 5275 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 5276}; 5277 5278static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 5279 struct ieee80211_vif *vif, 5280 void *data, int len) 5281{ 5282 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 5283 int err; 5284 u32 noa_duration; 5285 5286 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 5287 iwl_mvm_tm_policy, NULL); 5288 if (err) 5289 return err; 5290 5291 if (!tb[IWL_MVM_TM_ATTR_CMD]) 5292 return -EINVAL; 5293 5294 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 5295 case IWL_MVM_TM_CMD_SET_NOA: 5296 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 5297 !vif->bss_conf.enable_beacon || 5298 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 5299 return -EINVAL; 5300 5301 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 5302 if (noa_duration >= vif->bss_conf.beacon_int) 5303 return -EINVAL; 5304 5305 mvm->noa_duration = noa_duration; 5306 mvm->noa_vif = vif; 5307 5308 return iwl_mvm_update_quotas(mvm, true, NULL); 5309 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 5310 /* must be associated client vif - ignore authorized */ 5311 if (!vif || vif->type != NL80211_IFTYPE_STATION || 5312 !vif->cfg.assoc || !vif->bss_conf.dtim_period || 5313 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 5314 return -EINVAL; 5315 5316 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 5317 return iwl_mvm_enable_beacon_filter(mvm, vif); 5318 return iwl_mvm_disable_beacon_filter(mvm, vif); 5319 } 5320 5321 return -EOPNOTSUPP; 5322} 5323 5324int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 5325 struct ieee80211_vif *vif, 5326 void *data, int len) 5327{ 5328 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5329 int err; 5330 5331 mutex_lock(&mvm->mutex); 5332 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 5333 mutex_unlock(&mvm->mutex); 5334 5335 return err; 5336} 5337#endif 5338 5339void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5340 struct ieee80211_channel_switch *chsw) 5341{ 5342 /* By implementing this operation, we prevent mac80211 from 5343 * starting its own channel switch timer, so that we can call 5344 * ieee80211_chswitch_done() ourselves at the right time 5345 * (which is when the absence time event starts). 5346 */ 5347 5348 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 5349 "dummy channel switch op\n"); 5350} 5351 5352static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 5353 struct ieee80211_vif *vif, 5354 struct ieee80211_channel_switch *chsw) 5355{ 5356 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5357 struct iwl_chan_switch_te_cmd cmd = { 5358 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5359 mvmvif->color)), 5360 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 5361 .tsf = cpu_to_le32(chsw->timestamp), 5362 .cs_count = chsw->count, 5363 .cs_mode = chsw->block_tx, 5364 }; 5365 5366 lockdep_assert_held(&mvm->mutex); 5367 5368 if (chsw->delay) 5369 cmd.cs_delayed_bcn_count = 5370 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 5371 5372 return iwl_mvm_send_cmd_pdu(mvm, 5373 WIDE_ID(MAC_CONF_GROUP, 5374 CHANNEL_SWITCH_TIME_EVENT_CMD), 5375 0, sizeof(cmd), &cmd); 5376} 5377 5378static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 5379 struct ieee80211_vif *vif, 5380 struct ieee80211_channel_switch *chsw) 5381{ 5382 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5383 u32 apply_time; 5384 5385 /* Schedule the time event to a bit before beacon 1, 5386 * to make sure we're in the new channel when the 5387 * GO/AP arrives. In case count <= 1 immediately schedule the 5388 * TE (this might result with some packet loss or connection 5389 * loss). 5390 */ 5391 if (chsw->count <= 1) 5392 apply_time = 0; 5393 else 5394 apply_time = chsw->device_timestamp + 5395 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 5396 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 5397 5398 if (chsw->block_tx) 5399 iwl_mvm_csa_client_absent(mvm, vif); 5400 5401 if (mvmvif->bf_data.bf_enabled) { 5402 int ret = iwl_mvm_disable_beacon_filter(mvm, vif); 5403 5404 if (ret) 5405 return ret; 5406 } 5407 5408 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 5409 apply_time); 5410 5411 return 0; 5412} 5413 5414#define IWL_MAX_CSA_BLOCK_TX 1500 5415int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 5416 struct ieee80211_vif *vif, 5417 struct ieee80211_channel_switch *chsw) 5418{ 5419 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5420 struct ieee80211_vif *csa_vif; 5421 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5422 int ret; 5423 5424 mutex_lock(&mvm->mutex); 5425 5426 mvmvif->csa_failed = false; 5427 5428 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 5429 chsw->chandef.center_freq1); 5430 5431 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 5432 ieee80211_vif_to_wdev(vif), 5433 FW_DBG_TRIGGER_CHANNEL_SWITCH); 5434 5435 switch (vif->type) { 5436 case NL80211_IFTYPE_AP: 5437 csa_vif = 5438 rcu_dereference_protected(mvm->csa_vif, 5439 lockdep_is_held(&mvm->mutex)); 5440 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 5441 "Another CSA is already in progress")) { 5442 ret = -EBUSY; 5443 goto out_unlock; 5444 } 5445 5446 /* we still didn't unblock tx. prevent new CS meanwhile */ 5447 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 5448 lockdep_is_held(&mvm->mutex))) { 5449 ret = -EBUSY; 5450 goto out_unlock; 5451 } 5452 5453 rcu_assign_pointer(mvm->csa_vif, vif); 5454 5455 if (WARN_ONCE(mvmvif->csa_countdown, 5456 "Previous CSA countdown didn't complete")) { 5457 ret = -EBUSY; 5458 goto out_unlock; 5459 } 5460 5461 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 5462 5463 break; 5464 case NL80211_IFTYPE_STATION: 5465 /* 5466 * In the new flow FW is in charge of timing the switch so there 5467 * is no need for all of this 5468 */ 5469 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5470 CHANNEL_SWITCH_ERROR_NOTIF, 5471 0)) 5472 break; 5473 5474 /* 5475 * We haven't configured the firmware to be associated yet since 5476 * we don't know the dtim period. In this case, the firmware can't 5477 * track the beacons. 5478 */ 5479 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) { 5480 ret = -EBUSY; 5481 goto out_unlock; 5482 } 5483 5484 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX && 5485 hweight16(vif->valid_links) <= 1) 5486 schedule_delayed_work(&mvmvif->csa_work, 0); 5487 5488 if (chsw->block_tx) { 5489 /* 5490 * In case of undetermined / long time with immediate 5491 * quiet monitor status to gracefully disconnect 5492 */ 5493 if (!chsw->count || 5494 chsw->count * vif->bss_conf.beacon_int > 5495 IWL_MAX_CSA_BLOCK_TX) 5496 schedule_delayed_work(&mvmvif->csa_work, 5497 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 5498 } 5499 5500 if (!fw_has_capa(&mvm->fw->ucode_capa, 5501 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5502 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 5503 if (ret) 5504 goto out_unlock; 5505 } else { 5506 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 5507 } 5508 5509 mvmvif->csa_count = chsw->count; 5510 mvmvif->csa_misbehave = false; 5511 break; 5512 default: 5513 break; 5514 } 5515 5516 mvmvif->ps_disabled = true; 5517 5518 ret = iwl_mvm_power_update_ps(mvm); 5519 if (ret) 5520 goto out_unlock; 5521 5522 /* we won't be on this channel any longer */ 5523 iwl_mvm_teardown_tdls_peers(mvm); 5524 5525out_unlock: 5526 mutex_unlock(&mvm->mutex); 5527 5528 return ret; 5529} 5530 5531void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 5532 struct ieee80211_vif *vif, 5533 struct ieee80211_channel_switch *chsw) 5534{ 5535 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5536 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5537 struct iwl_chan_switch_te_cmd cmd = { 5538 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5539 mvmvif->color)), 5540 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 5541 .tsf = cpu_to_le32(chsw->timestamp), 5542 .cs_count = chsw->count, 5543 .cs_mode = chsw->block_tx, 5544 }; 5545 5546 /* 5547 * In the new flow FW is in charge of timing the switch so there is no 5548 * need for all of this 5549 */ 5550 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5551 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 5552 return; 5553 5554 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 5555 return; 5556 5557 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 5558 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 5559 5560 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 5561 if (mvmvif->csa_misbehave) { 5562 struct ieee80211_bss_conf *link_conf; 5563 5564 /* Second time, give up on this AP*/ 5565 5566 link_conf = wiphy_dereference(hw->wiphy, 5567 vif->link_conf[chsw->link_id]); 5568 if (WARN_ON(!link_conf)) 5569 return; 5570 5571 iwl_mvm_abort_channel_switch(hw, vif, link_conf); 5572 ieee80211_chswitch_done(vif, false, 0); 5573 mvmvif->csa_misbehave = false; 5574 return; 5575 } 5576 mvmvif->csa_misbehave = true; 5577 } 5578 mvmvif->csa_count = chsw->count; 5579 5580 mutex_lock(&mvm->mutex); 5581 if (mvmvif->csa_failed) 5582 goto out_unlock; 5583 5584 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 5585 WIDE_ID(MAC_CONF_GROUP, 5586 CHANNEL_SWITCH_TIME_EVENT_CMD), 5587 0, sizeof(cmd), &cmd)); 5588out_unlock: 5589 mutex_unlock(&mvm->mutex); 5590} 5591 5592static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 5593{ 5594 int i; 5595 5596 if (!iwl_mvm_has_new_tx_api(mvm)) { 5597 if (drop) { 5598 mutex_lock(&mvm->mutex); 5599 iwl_mvm_flush_tx_path(mvm, 5600 iwl_mvm_flushable_queues(mvm) & queues); 5601 mutex_unlock(&mvm->mutex); 5602 } else { 5603 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 5604 } 5605 return; 5606 } 5607 5608 mutex_lock(&mvm->mutex); 5609 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5610 struct ieee80211_sta *sta; 5611 5612 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5613 lockdep_is_held(&mvm->mutex)); 5614 if (IS_ERR_OR_NULL(sta)) 5615 continue; 5616 5617 if (drop) 5618 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 5619 else 5620 iwl_mvm_wait_sta_queues_empty(mvm, 5621 iwl_mvm_sta_from_mac80211(sta)); 5622 } 5623 mutex_unlock(&mvm->mutex); 5624} 5625 5626void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5627 u32 queues, bool drop) 5628{ 5629 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5630 struct iwl_mvm_vif *mvmvif; 5631 struct iwl_mvm_sta *mvmsta; 5632 struct ieee80211_sta *sta; 5633 bool ap_sta_done = false; 5634 int i; 5635 u32 msk = 0; 5636 5637 if (!vif) { 5638 iwl_mvm_flush_no_vif(mvm, queues, drop); 5639 return; 5640 } 5641 5642 /* Make sure we're done with the deferred traffic before flushing */ 5643 flush_work(&mvm->add_stream_wk); 5644 5645 mutex_lock(&mvm->mutex); 5646 mvmvif = iwl_mvm_vif_from_mac80211(vif); 5647 5648 /* flush the AP-station and all TDLS peers */ 5649 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5650 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5651 lockdep_is_held(&mvm->mutex)); 5652 if (IS_ERR_OR_NULL(sta)) 5653 continue; 5654 5655 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5656 if (mvmsta->vif != vif) 5657 continue; 5658 5659 if (sta == mvmvif->ap_sta) { 5660 if (ap_sta_done) 5661 continue; 5662 ap_sta_done = true; 5663 } 5664 5665 if (drop) { 5666 if (iwl_mvm_flush_sta(mvm, mvmsta->deflink.sta_id, 5667 mvmsta->tfd_queue_msk)) 5668 IWL_ERR(mvm, "flush request fail\n"); 5669 } else { 5670 if (iwl_mvm_has_new_tx_api(mvm)) 5671 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5672 else /* only used for !iwl_mvm_has_new_tx_api() below */ 5673 msk |= mvmsta->tfd_queue_msk; 5674 } 5675 } 5676 5677 mutex_unlock(&mvm->mutex); 5678 5679 /* this can take a while, and we may need/want other operations 5680 * to succeed while doing this, so do it without the mutex held 5681 */ 5682 if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 5683 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5684} 5685 5686void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5687 struct ieee80211_sta *sta) 5688{ 5689 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5690 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5691 struct iwl_mvm_link_sta *mvm_link_sta; 5692 struct ieee80211_link_sta *link_sta; 5693 int link_id; 5694 5695 mutex_lock(&mvm->mutex); 5696 for_each_sta_active_link(vif, sta, link_sta, link_id) { 5697 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_id], 5698 lockdep_is_held(&mvm->mutex)); 5699 if (!mvm_link_sta) 5700 continue; 5701 5702 if (iwl_mvm_flush_sta(mvm, mvm_link_sta->sta_id, 5703 mvmsta->tfd_queue_msk)) 5704 IWL_ERR(mvm, "flush request fail\n"); 5705 } 5706 mutex_unlock(&mvm->mutex); 5707} 5708 5709int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 5710 struct survey_info *survey) 5711{ 5712 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5713 int ret = 0; 5714 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, 5715 WIDE_ID(SYSTEM_GROUP, 5716 SYSTEM_STATISTICS_CMD), 5717 IWL_FW_CMD_VER_UNKNOWN); 5718 5719 memset(survey, 0, sizeof(*survey)); 5720 5721 /* only support global statistics right now */ 5722 if (idx != 0) 5723 return -ENOENT; 5724 5725 if (!fw_has_capa(&mvm->fw->ucode_capa, 5726 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 5727 return -ENOENT; 5728 5729 mutex_lock(&mvm->mutex); 5730 5731 if (iwl_mvm_firmware_running(mvm)) { 5732 ret = iwl_mvm_request_statistics(mvm, false); 5733 if (ret) 5734 goto out; 5735 } 5736 5737 survey->filled = SURVEY_INFO_TIME_RX | 5738 SURVEY_INFO_TIME_TX; 5739 5740 survey->time_rx = mvm->accu_radio_stats.rx_time + 5741 mvm->radio_stats.rx_time; 5742 do_div(survey->time_rx, USEC_PER_MSEC); 5743 5744 survey->time_tx = mvm->accu_radio_stats.tx_time + 5745 mvm->radio_stats.tx_time; 5746 do_div(survey->time_tx, USEC_PER_MSEC); 5747 5748 /* the new fw api doesn't support the following fields */ 5749 if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN) 5750 goto out; 5751 5752 survey->filled |= SURVEY_INFO_TIME | 5753 SURVEY_INFO_TIME_SCAN; 5754 survey->time = mvm->accu_radio_stats.on_time_rf + 5755 mvm->radio_stats.on_time_rf; 5756 do_div(survey->time, USEC_PER_MSEC); 5757 5758 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 5759 mvm->radio_stats.on_time_scan; 5760 do_div(survey->time_scan, USEC_PER_MSEC); 5761 5762 out: 5763 mutex_unlock(&mvm->mutex); 5764 return ret; 5765} 5766 5767static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 5768{ 5769 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 5770 u32 gi_ltf; 5771 5772 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 5773 case RATE_MCS_CHAN_WIDTH_20: 5774 rinfo->bw = RATE_INFO_BW_20; 5775 break; 5776 case RATE_MCS_CHAN_WIDTH_40: 5777 rinfo->bw = RATE_INFO_BW_40; 5778 break; 5779 case RATE_MCS_CHAN_WIDTH_80: 5780 rinfo->bw = RATE_INFO_BW_80; 5781 break; 5782 case RATE_MCS_CHAN_WIDTH_160: 5783 rinfo->bw = RATE_INFO_BW_160; 5784 break; 5785 case RATE_MCS_CHAN_WIDTH_320: 5786 rinfo->bw = RATE_INFO_BW_320; 5787 break; 5788 } 5789 5790 if (format == RATE_MCS_CCK_MSK || 5791 format == RATE_MCS_LEGACY_OFDM_MSK) { 5792 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 5793 5794 /* add the offset needed to get to the legacy ofdm indices */ 5795 if (format == RATE_MCS_LEGACY_OFDM_MSK) 5796 rate += IWL_FIRST_OFDM_RATE; 5797 5798 switch (rate) { 5799 case IWL_RATE_1M_INDEX: 5800 rinfo->legacy = 10; 5801 break; 5802 case IWL_RATE_2M_INDEX: 5803 rinfo->legacy = 20; 5804 break; 5805 case IWL_RATE_5M_INDEX: 5806 rinfo->legacy = 55; 5807 break; 5808 case IWL_RATE_11M_INDEX: 5809 rinfo->legacy = 110; 5810 break; 5811 case IWL_RATE_6M_INDEX: 5812 rinfo->legacy = 60; 5813 break; 5814 case IWL_RATE_9M_INDEX: 5815 rinfo->legacy = 90; 5816 break; 5817 case IWL_RATE_12M_INDEX: 5818 rinfo->legacy = 120; 5819 break; 5820 case IWL_RATE_18M_INDEX: 5821 rinfo->legacy = 180; 5822 break; 5823 case IWL_RATE_24M_INDEX: 5824 rinfo->legacy = 240; 5825 break; 5826 case IWL_RATE_36M_INDEX: 5827 rinfo->legacy = 360; 5828 break; 5829 case IWL_RATE_48M_INDEX: 5830 rinfo->legacy = 480; 5831 break; 5832 case IWL_RATE_54M_INDEX: 5833 rinfo->legacy = 540; 5834 } 5835 return; 5836 } 5837 5838 rinfo->nss = u32_get_bits(rate_n_flags, 5839 RATE_MCS_NSS_MSK) + 1; 5840 rinfo->mcs = format == RATE_MCS_HT_MSK ? 5841 RATE_HT_MCS_INDEX(rate_n_flags) : 5842 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 5843 5844 if (rate_n_flags & RATE_MCS_SGI_MSK) 5845 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 5846 5847 switch (format) { 5848 case RATE_MCS_EHT_MSK: 5849 /* TODO: GI/LTF/RU. How does the firmware encode them? */ 5850 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS; 5851 break; 5852 case RATE_MCS_HE_MSK: 5853 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 5854 5855 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 5856 5857 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 5858 rinfo->bw = RATE_INFO_BW_HE_RU; 5859 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 5860 } 5861 5862 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 5863 case RATE_MCS_HE_TYPE_SU: 5864 case RATE_MCS_HE_TYPE_EXT_SU: 5865 if (gi_ltf == 0 || gi_ltf == 1) 5866 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5867 else if (gi_ltf == 2) 5868 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5869 else if (gi_ltf == 3) 5870 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5871 else 5872 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5873 break; 5874 case RATE_MCS_HE_TYPE_MU: 5875 if (gi_ltf == 0 || gi_ltf == 1) 5876 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5877 else if (gi_ltf == 2) 5878 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5879 else 5880 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5881 break; 5882 case RATE_MCS_HE_TYPE_TRIG: 5883 if (gi_ltf == 0 || gi_ltf == 1) 5884 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5885 else 5886 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5887 break; 5888 } 5889 5890 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 5891 rinfo->he_dcm = 1; 5892 break; 5893 case RATE_MCS_HT_MSK: 5894 rinfo->flags |= RATE_INFO_FLAGS_MCS; 5895 break; 5896 case RATE_MCS_VHT_MSK: 5897 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 5898 break; 5899 } 5900} 5901 5902void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 5903 struct ieee80211_vif *vif, 5904 struct ieee80211_sta *sta, 5905 struct station_info *sinfo) 5906{ 5907 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5908 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5909 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5910 int i; 5911 5912 if (mvmsta->deflink.avg_energy) { 5913 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy; 5914 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 5915 } 5916 5917 if (iwl_mvm_has_tlc_offload(mvm)) { 5918 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw; 5919 5920 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 5921 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 5922 } 5923 5924 /* if beacon filtering isn't on mac80211 does it anyway */ 5925 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 5926 return; 5927 5928 if (!vif->cfg.assoc) 5929 return; 5930 5931 mutex_lock(&mvm->mutex); 5932 5933 if (mvmvif->deflink.ap_sta_id != mvmsta->deflink.sta_id) 5934 goto unlock; 5935 5936 if (iwl_mvm_request_statistics(mvm, false)) 5937 goto unlock; 5938 5939 sinfo->rx_beacon = 0; 5940 for_each_mvm_vif_valid_link(mvmvif, i) 5941 sinfo->rx_beacon += mvmvif->link[i]->beacon_stats.num_beacons + 5942 mvmvif->link[i]->beacon_stats.accu_num_beacons; 5943 5944 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 5945 if (mvmvif->deflink.beacon_stats.avg_signal) { 5946 /* firmware only reports a value after RXing a few beacons */ 5947 sinfo->rx_beacon_signal_avg = 5948 mvmvif->deflink.beacon_stats.avg_signal; 5949 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 5950 } 5951 unlock: 5952 mutex_unlock(&mvm->mutex); 5953} 5954 5955static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 5956 struct ieee80211_vif *vif, 5957 const struct ieee80211_mlme_event *mlme) 5958{ 5959 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 5960 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 5961 iwl_dbg_tlv_time_point(&mvm->fwrt, 5962 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 5963 NULL); 5964 return; 5965 } 5966 5967 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 5968 iwl_dbg_tlv_time_point(&mvm->fwrt, 5969 IWL_FW_INI_TIME_POINT_DEASSOC, 5970 NULL); 5971 return; 5972 } 5973} 5974 5975static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 5976 struct ieee80211_vif *vif, 5977 const struct ieee80211_event *event) 5978{ 5979#define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 5980 do { \ 5981 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 5982 break; \ 5983 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 5984 } while (0) 5985 5986 struct iwl_fw_dbg_trigger_tlv *trig; 5987 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 5988 5989 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 5990 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 5991 return; 5992 } 5993 5994 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5995 FW_DBG_TRIGGER_MLME); 5996 if (!trig) 5997 return; 5998 5999 trig_mlme = (void *)trig->data; 6000 6001 if (event->u.mlme.data == ASSOC_EVENT) { 6002 if (event->u.mlme.status == MLME_DENIED) 6003 CHECK_MLME_TRIGGER(stop_assoc_denied, 6004 "DENIED ASSOC: reason %d", 6005 event->u.mlme.reason); 6006 else if (event->u.mlme.status == MLME_TIMEOUT) 6007 CHECK_MLME_TRIGGER(stop_assoc_timeout, 6008 "ASSOC TIMEOUT"); 6009 } else if (event->u.mlme.data == AUTH_EVENT) { 6010 if (event->u.mlme.status == MLME_DENIED) 6011 CHECK_MLME_TRIGGER(stop_auth_denied, 6012 "DENIED AUTH: reason %d", 6013 event->u.mlme.reason); 6014 else if (event->u.mlme.status == MLME_TIMEOUT) 6015 CHECK_MLME_TRIGGER(stop_auth_timeout, 6016 "AUTH TIMEOUT"); 6017 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 6018 CHECK_MLME_TRIGGER(stop_rx_deauth, 6019 "DEAUTH RX %d", event->u.mlme.reason); 6020 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 6021 CHECK_MLME_TRIGGER(stop_tx_deauth, 6022 "DEAUTH TX %d", event->u.mlme.reason); 6023 } 6024#undef CHECK_MLME_TRIGGER 6025} 6026 6027static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 6028 struct ieee80211_vif *vif, 6029 const struct ieee80211_event *event) 6030{ 6031 struct iwl_fw_dbg_trigger_tlv *trig; 6032 struct iwl_fw_dbg_trigger_ba *ba_trig; 6033 6034 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6035 FW_DBG_TRIGGER_BA); 6036 if (!trig) 6037 return; 6038 6039 ba_trig = (void *)trig->data; 6040 6041 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 6042 return; 6043 6044 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 6045 "BAR received from %pM, tid %d, ssn %d", 6046 event->u.ba.sta->addr, event->u.ba.tid, 6047 event->u.ba.ssn); 6048} 6049 6050void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 6051 struct ieee80211_vif *vif, 6052 const struct ieee80211_event *event) 6053{ 6054 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6055 6056 switch (event->type) { 6057 case MLME_EVENT: 6058 iwl_mvm_event_mlme_callback(mvm, vif, event); 6059 break; 6060 case BAR_RX_EVENT: 6061 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 6062 break; 6063 case BA_FRAME_TIMEOUT: 6064 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 6065 event->u.ba.tid); 6066 break; 6067 default: 6068 break; 6069 } 6070} 6071 6072#define SYNC_RX_QUEUE_TIMEOUT (HZ) 6073void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 6074 enum iwl_mvm_rxq_notif_type type, 6075 bool sync, 6076 const void *data, u32 size) 6077{ 6078 struct { 6079 struct iwl_rxq_sync_cmd cmd; 6080 struct iwl_mvm_internal_rxq_notif notif; 6081 } __packed cmd = { 6082 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1), 6083 .cmd.count = 6084 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 6085 size), 6086 .notif.type = type, 6087 .notif.sync = sync, 6088 }; 6089 struct iwl_host_cmd hcmd = { 6090 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 6091 .data[0] = &cmd, 6092 .len[0] = sizeof(cmd), 6093 .data[1] = data, 6094 .len[1] = size, 6095 .flags = sync ? 0 : CMD_ASYNC, 6096 }; 6097 int ret; 6098 6099 /* size must be a multiple of DWORD */ 6100 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3))) 6101 return; 6102 6103 if (!iwl_mvm_has_new_rx_api(mvm)) 6104 return; 6105 6106 if (sync) { 6107 cmd.notif.cookie = mvm->queue_sync_cookie; 6108 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1; 6109 } 6110 6111 ret = iwl_mvm_send_cmd(mvm, &hcmd); 6112 if (ret) { 6113 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 6114 goto out; 6115 } 6116 6117 if (sync) { 6118 lockdep_assert_held(&mvm->mutex); 6119 ret = wait_event_timeout(mvm->rx_sync_waitq, 6120 READ_ONCE(mvm->queue_sync_state) == 0 || 6121 iwl_mvm_is_radio_hw_killed(mvm), 6122 SYNC_RX_QUEUE_TIMEOUT); 6123 WARN_ONCE(!ret && !iwl_mvm_is_radio_hw_killed(mvm), 6124 "queue sync: failed to sync, state is 0x%lx, cookie %d\n", 6125 mvm->queue_sync_state, 6126 mvm->queue_sync_cookie); 6127 } 6128 6129out: 6130 if (sync) { 6131 mvm->queue_sync_state = 0; 6132 mvm->queue_sync_cookie++; 6133 } 6134} 6135 6136void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 6137{ 6138 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6139 6140 mutex_lock(&mvm->mutex); 6141 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 6142 mutex_unlock(&mvm->mutex); 6143} 6144 6145int 6146iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 6147 struct ieee80211_vif *vif, 6148 struct cfg80211_ftm_responder_stats *stats) 6149{ 6150 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6151 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6152 6153 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 6154 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 6155 return -EINVAL; 6156 6157 mutex_lock(&mvm->mutex); 6158 *stats = mvm->ftm_resp_stats; 6159 mutex_unlock(&mvm->mutex); 6160 6161 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 6162 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 6163 BIT(NL80211_FTM_STATS_FAILED_NUM) | 6164 BIT(NL80211_FTM_STATS_ASAP_NUM) | 6165 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 6166 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 6167 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 6168 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 6169 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 6170 6171 return 0; 6172} 6173 6174int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6175 struct cfg80211_pmsr_request *request) 6176{ 6177 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6178 int ret; 6179 6180 mutex_lock(&mvm->mutex); 6181 ret = iwl_mvm_ftm_start(mvm, vif, request); 6182 mutex_unlock(&mvm->mutex); 6183 6184 return ret; 6185} 6186 6187void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6188 struct cfg80211_pmsr_request *request) 6189{ 6190 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6191 6192 mutex_lock(&mvm->mutex); 6193 iwl_mvm_ftm_abort(mvm, request); 6194 mutex_unlock(&mvm->mutex); 6195} 6196 6197static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 6198{ 6199 u8 protocol = ip_hdr(skb)->protocol; 6200 6201 if (!IS_ENABLED(CONFIG_INET)) 6202 return false; 6203 6204 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 6205} 6206 6207static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 6208 struct sk_buff *head, 6209 struct sk_buff *skb) 6210{ 6211 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6212 6213 /* For now don't aggregate IPv6 in AMSDU */ 6214 if (skb->protocol != htons(ETH_P_IP)) 6215 return false; 6216 6217 if (!iwl_mvm_is_csum_supported(mvm)) 6218 return true; 6219 6220 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 6221} 6222 6223int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw, 6224 struct ieee80211_vif *vif, 6225 struct cfg80211_set_hw_timestamp *hwts) 6226{ 6227 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6228 u32 protocols = 0; 6229 int ret; 6230 6231 /* HW timestamping is only supported for a specific station */ 6232 if (!hwts->macaddr) 6233 return -EOPNOTSUPP; 6234 6235 if (hwts->enable) 6236 protocols = 6237 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM; 6238 6239 mutex_lock(&mvm->mutex); 6240 ret = iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols); 6241 mutex_unlock(&mvm->mutex); 6242 6243 return ret; 6244} 6245 6246const struct ieee80211_ops iwl_mvm_hw_ops = { 6247 .tx = iwl_mvm_mac_tx, 6248 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 6249 .ampdu_action = iwl_mvm_mac_ampdu_action, 6250 .get_antenna = iwl_mvm_op_get_antenna, 6251 .set_antenna = iwl_mvm_op_set_antenna, 6252 .start = iwl_mvm_mac_start, 6253 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 6254 .stop = iwl_mvm_mac_stop, 6255 .add_interface = iwl_mvm_mac_add_interface, 6256 .remove_interface = iwl_mvm_mac_remove_interface, 6257 .config = iwl_mvm_mac_config, 6258 .prepare_multicast = iwl_mvm_prepare_multicast, 6259 .configure_filter = iwl_mvm_configure_filter, 6260 .config_iface_filter = iwl_mvm_config_iface_filter, 6261 .bss_info_changed = iwl_mvm_bss_info_changed, 6262 .hw_scan = iwl_mvm_mac_hw_scan, 6263 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 6264 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 6265 .sta_state = iwl_mvm_mac_sta_state, 6266 .sta_notify = iwl_mvm_mac_sta_notify, 6267 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 6268 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 6269 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 6270 .sta_rc_update = iwl_mvm_sta_rc_update, 6271 .conf_tx = iwl_mvm_mac_conf_tx, 6272 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 6273 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 6274 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 6275 .flush = iwl_mvm_mac_flush, 6276 .flush_sta = iwl_mvm_mac_flush_sta, 6277 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 6278 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 6279 .set_key = iwl_mvm_mac_set_key, 6280 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 6281 .remain_on_channel = iwl_mvm_roc, 6282 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 6283 .add_chanctx = iwl_mvm_add_chanctx, 6284 .remove_chanctx = iwl_mvm_remove_chanctx, 6285 .change_chanctx = iwl_mvm_change_chanctx, 6286 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 6287 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 6288 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 6289 6290 .start_ap = iwl_mvm_start_ap, 6291 .stop_ap = iwl_mvm_stop_ap, 6292 .join_ibss = iwl_mvm_start_ibss, 6293 .leave_ibss = iwl_mvm_stop_ibss, 6294 6295 .tx_last_beacon = iwl_mvm_tx_last_beacon, 6296 6297 .set_tim = iwl_mvm_set_tim, 6298 6299 .channel_switch = iwl_mvm_channel_switch, 6300 .pre_channel_switch = iwl_mvm_pre_channel_switch, 6301 .post_channel_switch = iwl_mvm_post_channel_switch, 6302 .abort_channel_switch = iwl_mvm_abort_channel_switch, 6303 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 6304 6305 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 6306 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 6307 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 6308 6309 .event_callback = iwl_mvm_mac_event_callback, 6310 6311 .sync_rx_queues = iwl_mvm_sync_rx_queues, 6312 6313 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 6314 6315#ifdef CONFIG_PM_SLEEP 6316 /* look at d3.c */ 6317 .suspend = iwl_mvm_suspend, 6318 .resume = iwl_mvm_resume, 6319 .set_wakeup = iwl_mvm_set_wakeup, 6320 .set_rekey_data = iwl_mvm_set_rekey_data, 6321#if IS_ENABLED(CONFIG_IPV6) 6322 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 6323#endif 6324 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 6325#endif 6326 .get_survey = iwl_mvm_mac_get_survey, 6327 .sta_statistics = iwl_mvm_mac_sta_statistics, 6328 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 6329 .start_pmsr = iwl_mvm_start_pmsr, 6330 .abort_pmsr = iwl_mvm_abort_pmsr, 6331 6332 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 6333#ifdef CONFIG_IWLWIFI_DEBUGFS 6334 .vif_add_debugfs = iwl_mvm_vif_add_debugfs, 6335 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs, 6336#endif 6337 .set_hw_timestamp = iwl_mvm_set_hw_timestamp, 6338}; 6339